Find redoc licenses

redoc licensing is a huge mess due to the webpack (for eg: some licenses are not mentioned or enforced properly, http://tartarus.org/~martin/PorterStemmer/js.txt, feross).
A detailed review needs to be done and all licenses should be mentioned and enforced explicitly and propagated to the upstream.

List of offending licenses/lines in webpack:
- [ ] MIT License from feross doesn't include MIT license text
- [ ] No license along the lines ``Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt``

Please comment below to add more to the list