[Enhancement] Swappable Packages (#216)

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#216
Reviewed-by: liambrydon <lbry121@aucklanduni.ac.nz>
Reviewed-by: Tobias O <tobias.olenyi@envipath.com>

utilities/misc.py

@@ -11,6 +11,7 @@ from enum import Enum
 from types import NoneType
 from typing import Any, Dict, List
 
+from django.conf import settings as s
 from django.db import transaction
 from envipy_additional_information import NAME_MAPPING, EnviPyModel, Interval
 from pydantic import BaseModel, HttpUrl
@@ -26,7 +27,6 @@ from epdb.models import (
     License,
     MLRelativeReasoning,
     Node,
-    Package,
     ParallelRule,
     Pathway,
     PluginModel,
@@ -42,6 +42,7 @@ from epdb.models import (
 from utilities.chem import FormatConverter
 
 logger = logging.getLogger(__name__)
+Package = s.GET_PACKAGE_MODEL()
 
 
 class HTMLGenerator: