Refactor states/status (#4857)

* add file for states

* move general definition out

* add some tests and docs

* add tests for invalid definitions

* make status_label tag generic

* move templatetags

* remove unused tag

* rename test file

* make status label a lookup

* rename tags

* move import structure

* add missing tag

* collect states dynamically

* fix context function

* move api function out

* add tests for tags

* rename tests

* refactor imports

* Add test for API function

* improve errors and add tests for imporved errors

* make test calls simpler

* refactor definitions to use enums

* switch to enum

* refactor definitions to use enums

* fix lookup

* fix tag name

* make _TAG lookup a function

* cleanup BaseEnum

* make _TAG definition simpler

* restructure status codes to enum

* reduce LoC

* type status codes as int

* add specific function for template context

* Add definition for lookups

* fix filter lookup

* TEST: "fix" action lookup

* Add missing migrations

* Make all group code references explict

* change default on models to value

* switch to IntEnum

* move groups into a seperate class

* only request _TAG if it exsists

* use value and list

* use dedicated groups

* fix stock assigment

* fix order code

* more fixes

* fix borked change

* fix render lookup

* add group

* fix import

* fix syntax

* clenup

* fix migrations

* fix typo

* fix wrong value usage

* fix test

* remove group section

* remove group section

* add more test cases

* Add more docstring

* move choices out of migrations

* change import ordeR?

* last try before I revert

* Update part.migrations.0112

- Add custom migration class which handles errors

* Add unit test for migration

- Ensure that the new fields are added to the model

* Update reference to PR

---------

Co-authored-by: Oliver Walters <oliver.henry.walters@gmail.com>

InvenTree/build/test_api.py

@@ -298,7 +298,7 @@ class BuildTest(BuildAPITest):
             expected_code=400,
         )
 
-        bo.status = BuildStatus.CANCELLED
+        bo.status = BuildStatus.CANCELLED.value
         bo.save()
 
         # Now, we should be able to delete
@@ -843,7 +843,7 @@ class BuildListTest(BuildAPITest):
         builds = self.get(self.url, data={'active': True})
         self.assertEqual(len(builds.data), 1)
 
-        builds = self.get(self.url, data={'status': BuildStatus.COMPLETE})
+        builds = self.get(self.url, data={'status': BuildStatus.COMPLETE.value})
         self.assertEqual(len(builds.data), 4)
 
         builds = self.get(self.url, data={'overdue': False})
@@ -863,7 +863,7 @@ class BuildListTest(BuildAPITest):
             reference="BO-0006",
             quantity=10,
             title='Just some thing',
-            status=BuildStatus.PRODUCTION,
+            status=BuildStatus.PRODUCTION.value,
             target_date=in_the_past
         )