Added Boolean, Byte, Char Serializer Tests
Implements a parse() method to parse TypeInformation in string representation.
Parser can now be tested with a JUnit test and supports Tuple arrays. Some minor bug fixes are also included.
Adapted test class for maven
Add annotation support for new java api
Removed obsolete array record utilities
Introduced notion of immutable types and stateful/stateless serializers.
Switched runtime task code from TypeSerializer to TypeSerializerFactory to support non thread-safe type serializers.
Add dedicated factories for stateful and stateless serializers.
Fix serializer equality checks and add tests.