[FL-2937] Remove resources from API to prevent frequent API version increase (#1935)

* Remove all icons from API
* Music player: icons
* Signal generator: icons
* Bt hid: icons
* Weather station: icons
* Picopass: icons
* File browser test: icons
* Example images: documentation
* Remove global assets header
* Fix picopass

Co-authored-by: あく <alleteam@gmail.com>

applications/main/u2f/u2f_app_i.h

@@ -4,6 +4,7 @@
 #include "scenes/u2f_scene.h"
 
 #include <gui/gui.h>
+#include <assets_icons.h>
 #include <gui/view_dispatcher.h>
 #include <gui/scene_manager.h>
 #include <gui/modules/submenu.h>

applications/main/u2f/views/u2f_view.c

@@ -1,5 +1,6 @@
 #include "u2f_view.h"
 #include <gui/elements.h>
+#include <assets_icons.h>
 
 struct U2fView {
     View* view;