Add vcfa_api_token resource

[adambarreiro]

Add vcfa_api_token resource, used to create API Tokens in VCFA. It works similarly to the VCD resource.

How to test manually:

terraform {
  required_providers {
    vcfa = {
      source  = "vmware/vcfa"
      version = "= 0.1.0"
    }
  }
}

# ------------------------------------
# Regular
# ------------------------------------

provider "vcfa" {
  user                 = "serviceadministrator"
  password             = "*******"
  token                = ""
  api_token            = ""
  auth_type            = "integrated"
  url                  = "https://vcfaUrl/tm/api"
  sysorg               = "System"
  org                  = "System"
  allow_unverified_ssl = "true"
  logging              = true
  logging_file         = "go-vcloud-director.log"
}

resource "vcfa_api_token" "custom" {
  name = "token1"		

  file_name        = "token1"
  allow_token_file = true
}

# ------------------------------------
# API Token
# ------------------------------------

provider "vcfa" {
  alias = "token"
  auth_type            = "api_token"
  api_token            = jsondecode(file(vcfa_api_token.custom.file_name))["refresh_token"]
  sysorg               = "System"
  org                  = "System"
  url                  = "https://vcfaUrl/tm/api"
  allow_unverified_ssl = "true"
  logging              = true
  logging_file         = "go-vcloud-director-2.log"
}

data "vcfa_org" "org" {
  provider = vcfa.token
  name = "tenant1"
}

output "org_id" {
  value = data.vcfa_org.org.id
}

# ------------------------------------
# API Token file
# ------------------------------------

provider "vcfa" {
  alias = "token2"
  auth_type            = "api_token_file"
  allow_api_token_file = true
  api_token_file       = vcfa_api_token.custom.file_name
  sysorg               = "System"
  org                  = "System"
  url                  = "https://vcfaUrl/tm/api"
  allow_unverified_ssl = "true"
  logging              = true
  logging_file         = "go-vcloud-director-3.log"
}

data "vcfa_org" "org2" {
  provider = vcfa.token2
  name = "tenant1"
}

output "org_id2" {
  value = data.vcfa_org.org2.id
}

[lvirbalas]

One user-facing suggestion inline.