- Using openssl on mac is not straightforward. We now explictly set the
  homebrew path to /usr/local/opt/openssl@1.1
- Updated documentation to reflect change of homebrew install
  requirement.

Update for OpenSSL 1.1.0

Thank you so much!

Adds windows build support

- Fixed overflow / underflow checks
- Small fixes related to type
- Added documentation for KID/ISS claim issues one could encounter.
- Added documentation on keeping keys in memory.

- Add a set of unit tests
- Fix a set of small bugs

- Moved all headers to a single location so they
  can be installed
- Removed C++11 extensions from headers
- Seperated out public/private headers
- Added doxygen
- Updates and adds documentation
- Fixed some memory leaks
- Updated samples

- Cleaned up the validator code
- Added set & kid validator
- Updated unit tests
- Removed jwsverifier.
- Added exceptions for parse errors.

- Minimal support for JWE
- Support for RS256, RS384, RS512
- Cleanup of claim verifiers
- Factory to produce claim verifiers from json description

- Added some additional tests.
- Removed some unneeded code.

git-subtree-dir: ext/jansson
git-subtree-split: fef27e6d3efa755a75888db1167f34fa80695b9e

- We can now sign & verify JWT's. Only none, HS256, HS384, HS512
  supported
- A set of claim validators to validate the JWTs
- Adds a set of unit tests to validate
- Adds support code coverage
- Adds support for lint
- Valgrind reports no memory leaks

JIRA: SEC-14818

- Implements JWT validation spec with JWS
- Only minimal cipher support (HS256, HS384, HS512, none)
- Only exp, iat, nbf check
- Set of unit tests to validate implementation

JIRA: SEC-14839