Project code active (#12250)

* Add 'active' field to the ProjectCode model

- Allows retiring of old project codes without deleting

* Update UI table

* Refactor ProjectCodeField

* Add unit test

* Bump API version and CHANGELOG

CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- [#12250](https://github.com/inventree/InvenTree/pull/12250) adds "active" field to the ProjectCode model and API endpoints
+
 ### Changed
 
 ### Removed