Replace sqflint with @bi-tools

[SkaceKamen]

@bi-tools is set of libraries to interact with Arma-related files made by me implemented in typescript. The primary goal of the libraries is to support this extension.

Goals:

• get rid of Java dependency
• improve parsing to support all SQF constructs (sqflint is a bit limited right now)
• improve preprocessor to support all macros and commands
• separate parsing, linting and analysis into their own modules:
  • parser - only generates AST
  • linter - generates warnings based on AST
  • analyser - builds info used by extension, such as variable list, etc
• improve configuratibility
• possibly introduce refactoring utilities
• refactor the language server code a bit, it's a mess currently

State:

• implement pre-processor
• implement fully featured SQF parser
• implement basic SQF analyzer (just variables now)
• implement basic SQF linter
• integrate preprocessor, SQF parser and analyzer into extension
• ANALYZER: implement context-based variables checker
• LINTER: implement more complex rules
• PARSER: improve error reporting
• PARSER: implement error recovery
• PREPROCESSOR: fix source maps
• integrate linter with extension
• properly integrate errors with extension (accepting errors from different files when parsing a single file)

[SkaceKamen]

The packages are now public here: https://github.com/SkaceKamen/bi-tools