Stop using obsolete interfaces

`USE_PLUGINS` and `loop_hook_use` are deprecated, use `Kaleidoscope.use` and
`Kaleidoscope.useLoopHook` instead.

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

README.md

@@ -44,7 +44,7 @@ static const kaleidoscope::GhostInTheFirmware::GhostKey ghost_keys[] PROGMEM = {
 };
 
 void setup() {
-  USE_PLUGINS(&GhostInTheFirmware, &Macros);
+  Kaleidoscope.use(&GhostInTheFirmware, &Macros);
 
   Kaleidoscope.setup ();
 

examples/GhostInTheFirmware/GhostInTheFirmware.ino

@@ -121,12 +121,12 @@ static const kaleidoscope::GhostInTheFirmware::GhostKey ghost_keys[] PROGMEM = {
 };
 
 void setup() {
-  USE_PLUGINS(&GhostInTheFirmware, &StalkerEffect, &Macros);
+  Kaleidoscope.use(&GhostInTheFirmware, &StalkerEffect, &Macros);
 
   StalkerEffect.variant = STALKER(BlazingTrail);
   GhostInTheFirmware.ghost_keys = ghost_keys;
 
-  event_handler_hook_use(eventDropper);
+  Kaleidoscope.useEventHandlerHook(eventDropper);
 
   Kaleidoscope.setup();
 }

src/Kaleidoscope/GhostInTheFirmware.cpp

@@ -32,7 +32,7 @@ GhostInTheFirmware::GhostInTheFirmware(void) {
 }
 
 void GhostInTheFirmware::begin(void) {
-  loop_hook_use(this->loopHook);
+  Kaleidoscope.useLoopHook(this->loopHook);
 }
 
 void GhostInTheFirmware::activate(void) {