Stop using obsolete functions

Use `Kaleidoscope.use` and `Kaleidoscope.useEventHandlerHook` instead of the
obsolete `USE_PLUGINS` and `event_handler_hook_use` interfaces.

Signed-off-by: Gergely Nagy <kaleidoscope@gergo.csillger.hu>

README.md

@@ -24,7 +24,7 @@ configuration is necessary.
 #include <Kaleidoscope-Escape-OneShot.h>
 
 void setup () {
-  USE_PLUGINS(&OneShot, &EscapeOneShot);
+  Kaleidoscope.use(&OneShot, &EscapeOneShot);
 
   Kaleidoscope.setup ();
 }

examples/Escape-OneShot/Escape-OneShot.ino

@@ -62,7 +62,7 @@ const Key keymaps[][ROWS][COLS] PROGMEM = {
 };
 
 void setup() {
-  USE_PLUGINS(&OneShot, &EscapeOneShot);
+  Kaleidoscope.use(&OneShot, &EscapeOneShot);
   Kaleidoscope.setup();
 }
 

src/Kaleidoscope/Escape-OneShot.cpp

@@ -26,7 +26,7 @@ EscapeOneShot::EscapeOneShot(void) {
 }
 
 void EscapeOneShot::begin(void) {
-  event_handler_hook_use(eventHandlerHook);
+  Kaleidoscope.useEventHandlerHook(eventHandlerHook);
 }
 
 Key EscapeOneShot::eventHandlerHook(Key mapped_key, byte row, byte col, uint8_t key_state) {