Migrate from USE_PLUGINS to Kaleidoscope.use

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

README.md

@@ -32,7 +32,7 @@ register the `Focus` hooks, and it will do the rest.
 #include <Kaleidoscope-Focus.h>
 
 void setup(void) {
-  USE_PLUGINS(&ColormapEffect, &Focus);
+  Kaleidoscope.use(&ColormapEffect, &Focus);
 
   Kaleidoscope.setup();
   

examples/Colormap/Colormap.ino

@@ -39,7 +39,7 @@ const Key keymaps[][ROWS][COLS] PROGMEM = {
 };
 
 void setup() {
-  USE_PLUGINS(&ColormapEffect);
+  Kaleidoscope.use(&ColormapEffect);
 
   Kaleidoscope.setup();
   ColormapEffect.max_layers(1);

src/Kaleidoscope/Colormap.cpp

@@ -35,7 +35,7 @@ ColormapEffect::ColormapEffect(void) {
 void ColormapEffect::begin(void) {
   LEDMode::begin();
 
-  USE_PLUGINS(&::EEPROMSettings, &::LEDPaletteTheme);
+  Kaleidoscope.use(&::EEPROMSettings, &::LEDPaletteTheme);
 }
 
 void ColormapEffect::max_layers(uint8_t max_) {