tests: removed bag_pocket_test, now covered in sptr_test
Added copy function for prng
Merge branch 'master' into unit_tests

Conflicts:
	lib/copy_sptrs.hpp
sptr_test: added PRNG test
tests: improved prng_test

* Added tests for ARNG and MTRNG
* Fixed uninitialized value exposed by MTRNG test
Made dict_test more robust
Added text_conversion_test

* Checks conversions between in-game encoding and pkmn::pkstring
* Added extra check for Gen I/III gender symbols
tests: added python_sptr_test.py
tests: added CSharpSPtrTest
tests: added JavaSPtrTest
Removed python_enum_test, overhauled CSharpStringTest (currently failing)
Overhauled JavaStringTest