Use tsconfig.tsbuildinfo when tsconfig.json not found

[aliksend]

Typescript compiler creates tsconfig.tsbuildinfo file in outDir. This file has program.options.paths field that is the same as compilerOptions.paths in tsconfig.json.
It will be good to try to load paths from tsconfig.tsbuildinfo if tsconfig.json not found to not to copy tsconfig.json every time to built app.

Thanks!