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/services/netbox_client.py

@@ -8,21 +8,9 @@ from pynetbox.models.dcim import Devices, DeviceTypes, Interfaces
 from gso.products.product_types.router import Router
 from gso.settings import load_oss_params
 from gso.utils.device_info import DEFAULT_SITE, FEASIBLE_IP_TRUNK_LAG_RANGE, ROUTER_ROLE, TierInfo
+from gso.utils.exceptions import NotFoundError, WorkflowStateError
 
 
-class NotFoundError(Exception):
-    """Exception raised for not found search."""
-
-    pass
-
-
-class WorkflowStateError(Exception):
-    """Exception raised on problems during workflow."""
-
-    pass
-
-
-# Define device models
 class Manufacturer(pydantic.BaseModel):
     """Defines the manufacturer of a device."""