* Add JsonWebKeySet parser/stringifier
* Update header directory
* Make JWKS parser correctness clean for OpenSSL 1.x
Add RSA keygen support
* Make JWKS parser correctness clean for OpenSSL 3.x
+extend unique_ptr for scoped destruction of OpenSSL objects
* Use PKey::{sign|verify}() in TokenSign
* Apply AutoCPointer to MkCert
* Apply Clang format
* JWKS::toStringRef() returns StringRef > Optional<StringRef>
* Fix Mac/Windows build error
* Fix incorrect fix of Mac build
* Fix filename in license comment for AutoCPointer.h
* Refactor complex C macros into function templates
