unified elempack unaryop vulkan shader

[nihui]

难度：中等
以absval为样例，保持代码风格统一，修改 unaryop_vulkan.h / cpp / comp 代码，实现统一的elempack shader，在 ncnn github 上提交 pull request，通过全部单元测试，合并pr

统一elempack减少代码量，提高可维护性和性能 目前unaryop算子的vulkan shader分散的pack1/pack4/pack8合并为一个统一的shader，并修改unaryop_vulkan.cpp的实现

具体可参考 absval 的代码提交 7557f5c

本issue为2025犀牛鸟开源人才培养活动专属issue

TBA

[duanfangli]

已成功领取本issue

[weikangqi]

已成功领取本issue

[eggman-1024]

已成功领取本issue

[nihui]

[
  {
    "url": "https://api.github.com/repos/Tencent/ncnn/issues/comments/3055426580",
    "html_url": "https://github.com/Tencent/ncnn/issues/6138#issuecomment-3055426580",
    "issue_url": "https://api.github.com/repos/Tencent/ncnn/issues/6138",
    "id": 3055426580,
    "node_id": "IC_kwDOBbcBAs62HhwU",
    "user": {
      "login": "duanfangli",
      "id": 201707750,
      "node_id": "U_kgDODAXQ5g",
      "avatar_url": "https://avatars.githubusercontent.com/u/201707750?v=4",
      "gravatar_id": "",
      "url": "https://api.github.com/users/duanfangli",
      "html_url": "https://github.com/duanfangli",
      "followers_url": "https://api.github.com/users/duanfangli/followers",
      "following_url": "https://api.github.com/users/duanfangli/following{/other_user}",
      "gists_url": "https://api.github.com/users/duanfangli/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/duanfangli/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/duanfangli/subscriptions",
      "organizations_url": "https://api.github.com/users/duanfangli/orgs",
      "repos_url": "https://api.github.com/users/duanfangli/repos",
      "events_url": "https://api.github.com/users/duanfangli/events{/privacy}",
      "received_events_url": "https://api.github.com/users/duanfangli/received_events",
      "type": "User",
      "user_view_type": "public",
      "site_admin": false
    },
    "created_at": "2025-07-10T04:41:35Z",
    "updated_at": "2025-07-10T04:41:35Z",
    "author_association": "NONE",
    "body": "已成功领取本issue",
    "reactions": {
      "url": "https://api.github.com/repos/Tencent/ncnn/issues/comments/3055426580/reactions",
      "total_count": 0,
      "+1": 0,
      "-1": 0,
      "laugh": 0,
      "hooray": 0,
      "confused": 0,
      "heart": 0,
      "rocket": 0,
      "eyes": 0
    },
    "performed_via_github_app": null
  },
  {
    "url": "https://api.github.com/repos/Tencent/ncnn/issues/comments/3055705957",
    "html_url": "https://github.com/Tencent/ncnn/issues/6138#issuecomment-3055705957",
    "issue_url": "https://api.github.com/repos/Tencent/ncnn/issues/6138",
    "id": 3055705957,
    "node_id": "IC_kwDOBbcBAs62Il9l",
    "user": {
      "login": "weikangqi",
      "id": 107830635,
      "node_id": "U_kgDOBm1daw",
      "avatar_url": "https://avatars.githubusercontent.com/u/107830635?v=4",
      "gravatar_id": "",
      "url": "https://api.github.com/users/weikangqi",
      "html_url": "https://github.com/weikangqi",
      "followers_url": "https://api.github.com/users/weikangqi/followers",
      "following_url": "https://api.github.com/users/weikangqi/following{/other_user}",
      "gists_url": "https://api.github.com/users/weikangqi/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/weikangqi/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/weikangqi/subscriptions",
      "organizations_url": "https://api.github.com/users/weikangqi/orgs",
      "repos_url": "https://api.github.com/users/weikangqi/repos",
      "events_url": "https://api.github.com/users/weikangqi/events{/privacy}",
      "received_events_url": "https://api.github.com/users/weikangqi/received_events",
      "type": "User",
      "user_view_type": "public",
      "site_admin": false
    },
    "created_at": "2025-07-10T06:00:00Z",
    "updated_at": "2025-07-10T06:00:00Z",
    "author_association": "NONE",
    "body": "已成功领取本issue",
    "reactions": {
      "url": "https://api.github.com/repos/Tencent/ncnn/issues/comments/3055705957/reactions",
      "total_count": 0,
      "+1": 0,
      "-1": 0,
      "laugh": 0,
      "hooray": 0,
      "confused": 0,
      "heart": 0,
      "rocket": 0,
      "eyes": 0
    },
    "performed_via_github_app": null
  },
  {
    "url": "https://api.github.com/repos/Tencent/ncnn/issues/comments/3055706003",
    "html_url": "https://github.com/Tencent/ncnn/issues/6138#issuecomment-3055706003",
    "issue_url": "https://api.github.com/repos/Tencent/ncnn/issues/6138",
    "id": 3055706003,
    "node_id": "IC_kwDOBbcBAs62Il-T",
    "user": {
      "login": "eggman-1024",
      "id": 79270109,
      "node_id": "MDQ6VXNlcjc5MjcwMTA5",
      "avatar_url": "https://avatars.githubusercontent.com/u/79270109?v=4",
      "gravatar_id": "",
      "url": "https://api.github.com/users/eggman-1024",
      "html_url": "https://github.com/eggman-1024",
      "followers_url": "https://api.github.com/users/eggman-1024/followers",
      "following_url": "https://api.github.com/users/eggman-1024/following{/other_user}",
      "gists_url": "https://api.github.com/users/eggman-1024/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/eggman-1024/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/eggman-1024/subscriptions",
      "organizations_url": "https://api.github.com/users/eggman-1024/orgs",
      "repos_url": "https://api.github.com/users/eggman-1024/repos",
      "events_url": "https://api.github.com/users/eggman-1024/events{/privacy}",
      "received_events_url": "https://api.github.com/users/eggman-1024/received_events",
      "type": "User",
      "user_view_type": "public",
      "site_admin": false
    },
    "created_at": "2025-07-10T06:00:02Z",
    "updated_at": "2025-07-10T06:00:02Z",
    "author_association": "NONE",
    "body": "已成功领取本issue",
    "reactions": {
      "url": "https://api.github.com/repos/Tencent/ncnn/issues/comments/3055706003/reactions",
      "total_count": 0,
      "+1": 0,
      "-1": 0,
      "laugh": 0,
      "hooray": 0,
      "confused": 0,
      "heart": 0,
      "rocket": 0,
      "eyes": 0
    },
    "performed_via_github_app": null
  }
]

[nihui]

#6179 已合并