The recent PR https://github.com/project-kessel/ksl-schema-language/pull/37 adds the ability to use reserved keywords like "namespace" and "version" as valid identifiers in ksl.

The KSL extension must be updated to properly colour and recognize these identifiers separate from reserved keywords. A PR exists currently to merge the extension branch itself and will need to be expanded upon. https://github.com/project-kessel/ksl-schema-language/pull/36 

Initial issue: https://github.com/project-kessel/ksl-schema-language/issues/33 

AC:

• Extension is added to main branch
• Extension syntax is updated to properly highlight a reserved keyword vs a keyword being used as an identifier
• Extension is updated and published on vscode webstore.