Reworked permutation generation in test framework and cleanup

- Reworked how permutations work
  - Now with global defines as well (apply to all code)
  - Also supports lists of different permutation sets
- Added better cleanup in tests and "make clean"

Makefile

@@ -90,3 +90,4 @@ clean:
 	rm -f $(OBJ)
 	rm -f $(DEP)
 	rm -f $(ASM)
+	rm -f tests_/test_*.toml.*