Add an avatar for the card creator

* Add avatar to minicard
* Add field to card details
* Add show option in Board / Card Settings

models/boards.js

@@ -372,6 +372,14 @@ Boards.attachSchema(
       defaultValue: true,
     },
 
+    allowsCreator: {
+      /**
+       * Does the board allow creator?
+       */
+      type: Boolean,
+      defaultValue: true,
+    },
+
     allowsAssignee: {
       /**
        * Does the board allows assignee?
@@ -1187,6 +1195,10 @@ Boards.mutations({
     return { $set: { allowsSubtasks } };
   },
 
+  setAllowsCreator(allowsCreator) {
+    return { $set: { allowsCreator } };
+  },
+
   setAllowsMembers(allowsMembers) {
     return { $set: { allowsMembers } };
   },