Fix #1034: Improve symlink resolution in module specifier generation

[chase]

Extends the symlink support in GetEachFileNameOfModule to properly resolve module specifiers across symlinked packages and workspaces.

Key changes:

• Move knownsymlinks from compiler to dedicated symlinks package
• Implement active resolution via ResolveModuleName to populate cache
• Add dependency resolution from package.json to detect symlinks early
• Improve ignored path handling (node_modules/., .git, .# emacs locks)
• Add comprehensive test coverage for symlink resolution
• Fix declaration emit to prefer original paths over symlink paths

Fixes https://github.com/microsoft/typescript-go/issues/1657 Fixes https://github.com/microsoft/typescript-go/issues/1034 Fixes https://github.com/microsoft/typescript-go/issues/1347