[SWDEV-451960] [WIP] Add Pytest

Updates:
- Added pytest to shared/pytest folder
- User can execute tests:

[pytest]
python3 -m pytest -p no:cacheprovider /opt/rocm/share/amd_smi/tests/pytest/unit_tests.py -s -v
python3 -m pytest -p no:cacheprovider /opt/rocm/share/amd_smi/tests/pytest/integration_test.py -s -v

[unittest]
/opt/rocm/share/amd_smi/tests/pytest/unit_tests.py -v
/opt/rocm/share/amd_smi/tests/pytest/integration_test.py -v

- Automatically installs pytest

Change-Id: Ia3281a9608aeeb803b91f8b83f87ff84b01037f4
Signed-off-by: Charis Poag <Charis.Poag@amd.com>

pytest/__init__.py

@@ -0,0 +1,4 @@
+import sys
+sys.path.append("/opt/rocm/libexec/amdsmi_cli/")
+
+from _version import __version__