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/isr.cpp

@@ -19,6 +19,7 @@ ISR(TCB0_INT_vect)
 
     // in this program, this interrupt is only used for timing.
     // we'll now return to executing loop()
+	rgb_run_next = 1;
 
     // reset the INTFLAGS - necessary on this series
     TCB0.INTFLAGS = intflags;
@@ -30,12 +31,15 @@ ISR(PORTA_PORT_vect)
     uint8_t intflags = PORTA.INTFLAGS;
 
     // shitty debounce; this is bad practice
-    delay(5);
+    delay(8);
 
 	// was our pin changed?
     if (intflags & PIN2_bm) {
         // start or re-start running a program
-        run_rgbprog = 1;        // run a new program
+		if (!digitalRead(PIN_PA2)) {
+			run_rgbprog = 1;        // run a new program
+			rgb_run_next = 1;
+		}
     }
 
     // reset the INTFLAGS - necessary on this series