KDL 1.0.0 compliance for implementations

[zkat]

This is a tracking meta-issue to make sure all existing implementations are up to speed with 1.0!

• kdl-rs: KDL 1.0 Compliance kdl-rs#18
• kdljs: KDL 1.0 Compliance kdljs#6
• kdl-rb: KDL 1.0 compliance danini-the-panini/kdl-rb#2
• kdl-dart: KDL 1.0 Compliance danini-the-panini/kdl-dart#1
• kdl4j: KDL 1.0 Compliance kdl4j#3
• kdl-net: Update for KDL 1.0 borland/kdl-net#1
• kdl-php: KDL 1.0 Compliance kdl-php#22

New implementations:

• Lua: Lua implementation (pure Lua, minimal dependencies) #145
• Elixir: An elixir implementation #155
• C: C Implementation #160
• Go: Go parser #54
• Python: https://github.com/tabatkins/kdlpy

Other bits:

• VS Code: Update for KDL 1.0 vscode-kdl#4

[hkolbeck]

I spoke to @borland on Twitter and he'd like to wait on the Java update, then port the changes over to the .NET impl, which works for me.

[hkolbeck]

I believe kdl4j is compliant with the 1.0.0 spec as of these changes: kdl-org/kdl4j#4

@borland: I think the changes in that PR should be ready to port over, though they're more extensive than I'd hoped.

[danini-the-panini]

Starting work on updating the dart implementation: danini-the-panini/kdl-dart#2

[djmattyg007]

I wouldn't be waiting on the original kdl-py implementation to be updated. Even in its current state, it's not compliant with the spec as it was written at the time. Better to just refer to kdlpy and cuddle.

[Patitotective]

I think kdl-nim is already compliant with KDL v1.0.0.

[zkat]

Since we have #372 now, I'm going to close this one.