Handle consistent file name during editor and tsc --watch scenarios

[sheetalkamat]

• Stores the correct casing and root file names in configured project instead of taking file names from the script info created so that the discovered file name during tsconfig resolution is retained.
• Instead of just ignoring watches invoked for open files, they are delay applied at time of close if needed
• Builder caches bind and semantic diagnostics and not fileProcessing and program diagnostics since those can change when building program with same files without change in file..
• Instead of reporting diagnostic about conflicting files without any location prefer the reference where it was located

Note microsoft/vscode#82634 still needs to be fixed on vscode side.
Fixes #25460