[UMBRELLA] Third-party license attribution

Currently, we do not include license files from third-party components. As some licenses require attribution, we should include the correct license files from components we depend on.

For the go modules we can probably leverage https://github.com/google/go-licenses to provide the metadata. This provides both dependency checking of forbidden licenses, and automatic downloads of license files.

The yunikorn-web repository only needs our own LICENSE/NOTICE files, as we have no 3rd party go dependencies, and javascript deps are written to /html/3rdpartydependencies.txt in the generated image.