add consume method

Co-authored-by: Ivan Yuriev <ivanyr44@gmail.com>

lib/controls.lua

@@ -48,6 +48,13 @@ function controls:cache()
     end
 end
 
+--- marks a control consumed for the current frame
+--- the control will no longer be considered active
+--- @param key string
+function controls:consume(key)
+    currentKeys[key] = nil
+end
+
 --- check if a control is active
 --- @param key string
 function controls:isDown(key)