Clean up the repo a bit, and add some unit tests

• Add a bunch of unit tests for different workflows
• Rework the different util modules and merge them where relevant
• Resolve some TODO items in config.py (netmasks are now validated)
• Add some :term: directives to docstrings
• Resolve a pytest warning about an unregistered mark @pytest.mask.workflow

gso/api/v1/imports.py

@@ -15,7 +15,7 @@ from gso.products.product_blocks.router import RouterRole, RouterVendor
 from gso.products.product_blocks.site import SiteTier
 from gso.services import subscriptions
 from gso.services.crm import CustomerNotFoundError, get_customer_by_name
-from gso.workflows.iptrunk.utils import LAGMember
+from gso.utils.helpers import LAGMember
 
 router = APIRouter(prefix="/imports", tags=["Imports"], dependencies=[Depends(opa_security_default)])