Minecraft World Utility Code

Use a type that actually exists for checking the type code.

Implement full printing support for all tags in the unit tests.

Make use of operator== being available on tags to simplify a couple of unit tests slightly.

Keep the expected serialized form of the complicated list in one place (in misc.cpp) instead of in both the parsing and serializing unit test modules.

Check the result of parsing a complicated list.

Refactor object printing support code into cppunit/nbt/misc.h.

Refactor out construction of a complicated list of lists for unit testing into the utilities file.

Refactor unit tests to move floating-point serialization data into a common location.

Add missing unit tests.

Add missing include.