Include OneShotMetaKeys in the headers for ActiveModColor

Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>

plugins/Kaleidoscope-LED-ActiveModColor/README.md

@@ -63,6 +63,11 @@ The `ActiveModColorEffect` object provides the following methods:
 
 * [Kaleidoscope-LEDControl](Kaleidoscope-LEDControl.md)
 * [Kaleidoscope-OneShot](Kaleidoscope-OneShot.md)
+* [Kaleidoscope-OneShotMetaKeys](Kaleidoscope-OneShotMetaKeys.md)
+
+The `ActiveModColorEffect` plugin doesn't require that either OneShot or
+OneShotMetaKeys plugins are registered with `KALEIDOSCOPE_INIT_PLUGINS()` in
+order to work, but it does depend on their header files.
 
 ## Further reading
 

plugins/Kaleidoscope-LED-ActiveModColor/src/kaleidoscope/plugin/LED-ActiveModColor.cpp

@@ -17,6 +17,7 @@
 
 #include <Kaleidoscope-LED-ActiveModColor.h>
 #include <Kaleidoscope-OneShot.h>
+#include <Kaleidoscope-OneShotMetaKeys.h>
 #include "kaleidoscope/LiveKeys.h"
 #include "kaleidoscope/layers.h"
 #include "kaleidoscope/keyswitch_state.h"