LEDs now operating on button push

Fixed several bugs:
- TCB wasn't running. The datasheet steps were not complete.
- TCA was waking the MCU and causing the main program to run. Added checks
  to ensure program only runs on button or TCB wakeup.
- Fixed some peculiarities with specific RGBLED programs

fw/HackSpaceCon_AS7/HSC_Wand/rgbled.h

@@ -19,8 +19,9 @@
 
 
 
-#define enable_rgb_timer()      {TCB0.CNT = 0; TCB0.CTRLA |=  1;};
-#define disable_rgb_timer()     {TCB0.CTRLA &= ~1;};
+#define enable_rgb_timer()      {TCB0.CNT = 0; TCB0.INTFLAGS = 0xff; \
+								 TCB0.INTCTRL = TCB_CAPT_bm; TCB0.CTRLA |=  TCB_ENABLE_bm;};
+#define disable_rgb_timer()     {TCB0.INTCTRL = 0;           TCB0.CTRLA &= ~TCB_ENABLE_bm;};
 
 
 
@@ -31,6 +32,10 @@ extern uint8_t (*rgb_program[PROG_COUNT])(uint8_t);
 
 
 
+extern volatile uint8_t rgb_run_next;
+
+
+
 void conf_rgb_timer();