OVC tool leftovers (#18410)

* Made MO cli parser independent from OVC, added OVC Pylint test, minor fixes.

* Small corrections.

* PyLint fixes.

* Added init files.

* PyLint fixes.

* Small correction.

* Removed OVC dependency from MO.

* Fixed MO unit tests.

* PyLint fixes.

* Unit tests fix.

* Returned MO unit tests.

* PyLint configs.

* Small correction.

* Moved offline_transformations to back.

* Moved offline_transformations to back.

.github/workflows/mo.yml

@@ -52,6 +52,10 @@ jobs:
           pip install -r requirements_dev.txt
         working-directory: tools/mo
 
-      - name: Pylint
+      - name: Pylint-MO
         run: pylint -d C,R,W openvino/tools/mo
         working-directory: tools/mo
+
+      - name: Pylint-OVC
+        run: pylint -d C,R,W openvino/tools/ovc
+        working-directory: tools/ovc