Add `pyslang/tests/test_syntax_tree_equality.py` Python tests (#1214) #25

Job	Run time
Build with Pip (windows-latest, 3.11)	9m 39s
Build with Pip (windows-latest, pypy-3.9)	10m 45s
Build with Pip (macos-latest, 3.11)	3m 19s
Build with Pip (macos-latest, pypy-3.9)	4m 16s
Build with Pip (ubuntu-latest, 3.11)	6m 42s
Build with Pip (ubuntu-latest, pypy-3.9)	7m 0s
	41m 41s

Provide feedback