Reintroduce setting for project codes (#8920)

* Re-introducde old setting

* Optionally hide project code column

* Control visibility of table filters

* Hide fields from forms

src/backend/InvenTree/common/setting/system.py

@@ -1003,6 +1003,12 @@ SYSTEM_SETTINGS: dict[str, InvenTreeSettingsKeyType] = {
         'validator': bool,
         'after_save': reload_plugin_registry,
     },
+    'PROJECT_CODES_ENABLED': {
+        'name': _('Enable project codes'),
+        'description': _('Enable project codes for tracking projects'),
+        'default': False,
+        'validator': bool,
+    },
     'STOCKTAKE_ENABLE': {
         'name': _('Stocktake Functionality'),
         'description': _(