Add support for v0.9.0 features #38 #39 #40 #41

[BernieWhite]

PR Summary

• Added PSRule resource schema. Add language schema for .Rule.yaml files #39
• Updated PSRule options schema to v0.9.0. Update PSRule options schema to v0.9.0 #38
• Added snippet for baseline resource. Add baseline YAML snippet #40
• Added highlighting for Synopsis: resource comments. Add syntax highlighting for YAML resource files #41

Fixes #39
Fixes #38
Fixes #40
Fixes #41

PR Checklist

• PR has a meaningful title
• Summarized changes
• Change is not breaking
• This PR is ready to merge and is not Work in Progress
• Code changes
  • Link to a filed issue
  • Change log has been updated with change under unreleased section