Port changes to the package from #323 (#337)

Fixed relative text alignment in docstrings to fix autodoc warnigns

Renamed cuda.bench.test_cpp_exception and cuda.bench.test_py_exception functions
to start with underscore, signaling that these functions are internal and should
not be documented

Account for test_cpp_exceptions -> _test_cpp_exception, same for *_py_*

Make sure to reset __module__ of reexported symbols to be cuda.bench

python/test/test_cuda_bench.py

@@ -6,12 +6,12 @@ import pytest
 
 def test_cpp_exception():
     with pytest.raises(RuntimeError, match="Test"):
-        bench._nvbench.test_cpp_exception()
+        bench._nvbench._test_cpp_exception()
 
 
 def test_py_exception():
     with pytest.raises(bench.NVBenchRuntimeError, match="Test"):
-        bench._nvbench.test_py_exception()
+        bench._nvbench._test_py_exception()
 
 
 @pytest.mark.parametrize(