Splot exercise permission group

The existing "exercises_editor" can only edit "basic" things related to the
exercises, while the new "exercises_admin" can also edit equipment, muscles, etc.

Author: rolandgeider

wger/core/fixtures/groups.json

@@ -481,6 +481,75 @@
   {
     "fields": {
       "name": "exercises_editor",
+      "permissions": [
+        [
+          "add_translation",
+          "exercises",
+          "translation"
+        ],
+        [
+          "change_translation",
+          "exercises",
+          "translation"
+        ],
+        [
+          "delete_translation",
+          "exercises",
+          "translation"
+        ],
+        [
+          "add_exercise",
+          "exercises",
+          "exercise"
+        ],
+        [
+          "change_exercise",
+          "exercises",
+          "exercise"
+        ],
+        [
+          "delete_exercise",
+          "exercises",
+          "exercise"
+        ],
+        [
+          "add_exercisecomment",
+          "exercises",
+          "exercisecomment"
+        ],
+        [
+          "change_exercisecomment",
+          "exercises",
+          "exercisecomment"
+        ],
+        [
+          "delete_exercisecomment",
+          "exercises",
+          "exercisecomment"
+        ],
+        [
+          "add_exerciseimage",
+          "exercises",
+          "exerciseimage"
+        ],
+        [
+          "change_exerciseimage",
+          "exercises",
+          "exerciseimage"
+        ],
+        [
+          "delete_exerciseimage",
+          "exercises",
+          "exerciseimage"
+        ]
+      ]
+    },
+    "model": "auth.group",
+    "pk": 6
+  },
+  {
+    "fields": {
+      "name": "exercises_admin",
       "permissions": [
         [
           "add_equipment",
@@ -590,6 +659,6 @@
       ]
     },
     "model": "auth.group",
-    "pk": 6
+    "pk": 7
   }
 ]