Add Remote App & UI updates. (#1451)

* Alpha order sub-menus
* WIP Getting Remote types outlined
* WIP building UI
* WIP adding RemoteButton control
* WIP Fix build
* WIP Basic editing support
* Border on the active button
* Make TxView2 sane
* Add easier RGB color creation from uint32
* Center some button icons
* WIP Remote - main UI
* WIP main UI mostly working, can send
* Add 'join' utility
* WIP save/load
* Pre-alloc buttons to prevent focus dangling
* Alpha order settings/debug pages
* Add UI for picking capture and set frequency
* WIP Getting really close now
* Fix path for init name
* Some fit & finish

firmware/common/ui_widget.hpp

@@ -479,10 +479,13 @@ class NewButton : public Widget {
 
     void paint(Painter& painter) override;
 
+   protected:
+    virtual Style paint_style();
+    Color color_;
+
    private:
     std::string text_;
     const Bitmap* bitmap_;
-    Color color_;
     bool vertical_center_{false};
 };