docs(notice): include upstream third-party notices (Apache-2.0 4(d))

The minimal project-level attribution did not satisfy Apache-2.0 4(d),
which requires derivative distributions to carry the attribution notices
from upstream NOTICE files. NOTICE now includes the full contents of
microsoft/TypeScript's ThirdPartyNoticeText.txt and
microsoft/typescript-go's NOTICE.txt, plus a note for the Go runtime
(BSD) embedded in the bridge binary.

Author: johnsoncodehk