Doom - Mayhem Edition (#2570)

* Doom - Mini Mayhem version

* Update ui_doom.cpp

* Update ui_doom.cpp

* Update ui_doom.cpp

* Update ui_doom.cpp

* Update ui_doom.cpp

* Update ui_doom.cpp

* Update ui_doom.cpp

* Update ui_doom.cpp

* Doom - Mayhem Edition

Made the Doom - Mayhem Edition game. Some little bugs but good enough for nightly.

* Code formatting. Forgot like always.

* give more initial ammo until i put ammo around the maze to collect

firmware/application/external/external.cmake

@@ -8,6 +8,9 @@ set(EXTCPPSRC
 	external/breakout/main.cpp
 	external/breakout/ui_breakout.cpp
 
+	#doom
+	external/doom/main.cpp
+	external/doom/ui_doom.cpp
 	#snake
 	external/snake/main.cpp
 	external/snake/ui_snake.cpp
@@ -205,6 +208,7 @@ set(EXTAPPLIST
 	keyfob
 	tetris
 	breakout
+	doom
 	snake
 	extsensors
 	foxhunt_rx