[Feature][Track] KCL support find reference tool

[amyXia1994]

Feature Request

Is your feature request related to a problem? Please describe:

Scenarios that need find reference tool:

• when writing code in KCL IDE, to find out which files is currently using the target schema/attribute/variable
• when executing CI test, to locate and filter all the files which have dependent on the changed schema/attribute/variable
• find reference is also the base of the kcl refactor tool

Describe the feature you'd like:

provide command line tool to find reference of a target variable/schema/attribute.

The input: the path to the variable/schema/attribute definition. For example by using the path selector CLI parameter (-S)

The output: list of all the positions of the variable/schema/attribute references.

Describe alternatives you've considered:

Simply search for the variable/schema/attribute names could help to roughly narrow the ranges to find the references, but this approach tend to mismatch irrelevant texts and the result is really not precise.

Teachability, Documentation, Adoption, Migration Strategy:

[amyXia1994]

The support of the reference tool can be broken down into several stages:

• support find reference token list from the definition [Feature] support find reference token list from the definition #712 Feat: lsp support find refs #721
• performance: support token index caching [Enhancement][Design] improve performance of find refs  #723
• IDE integration:
  • integrate into the LSP textDocument_references API Feat: lsp support find refs #721
  • support partially returning the reference list using workDoneProgress
• performance:
  • support offline index of definitions/references, for example implement the LSIF protocol
  • support token index offline saving

[amyXia1994]

enhancement on the offline index of symbols could be tracked in new issues