CLJ-2806: Add support for a param-tags metadata via the special metadata field :param-tags taking a vector of symbols corresponding to types and a new reader for supporting it of ^[T U]. Also, added support for using param-tags at compile time to specify a single method for invocation or acccess of qualified class members Class/member and constructors via Class/new. Also implemented method values by expanding the meaning of qualified class member symbolic representation. Added compiler macro to identify Class/method and Class/new member symbols and emit a single-arity function with type hints and coercions on args to fully resolve target constructor, instance method, or static method call. There is no way to specify bound methods.