CogCommonUI: Add a new plugin to fix CommonUI blocking cog shortcuts (F1, F2, ...)

Reference this plugin where other cog modules are added.
This plugin uses a CommonUI ActionRouter to let Cog receives the shortcuts it needs.
If you already have an Action Router, you can call FCogImguiInputHelper::IsTopPriorityKey to know if the key event to should handled or not.

Plugins/CogCommonUI/CogCommonUI.uplugin

@@ -0,0 +1,34 @@
+{
+  "FileVersion": 1,
+  "Version": 1,
+  "VersionName": "1.0",
+  "FriendlyName": "CogCommonUI",
+  "Description": "",
+  "Category": "Other",
+  "CreatedBy": "Arnaud Jamin",
+  "CreatedByURL": "",
+  "DocsURL": "",
+  "MarketplaceURL": "",
+  "SupportURL": "",
+  "CanContainContent": false,
+  "IsBetaVersion": false,
+  "IsExperimentalVersion": false,
+  "Installed": false,
+  "Modules": [
+    {
+      "Name": "CogCommonUI",
+      "Type": "Runtime",
+      "LoadingPhase": "Default"
+    }
+  ],
+  "Plugins": [
+    {
+      "Name": "Cog",
+      "Enabled": true
+    },
+    {
+      "Name": "CommonUI",
+      "Enabled": true
+    }
+  ]
+}