Fixed problems with illegal pin detection.

Author: cyborg5

IRLibProtocols/IRLibSAMD51.h

@@ -36,17 +36,18 @@
   #define IR_SEND_PWM_PIN 9
   #if (! ( (IR_SEND_PWM_PIN==0) || (IR_SEND_PWM_PIN==1) || \
            ((IR_SEND_PWM_PIN>=4) && (IR_SEND_PWM_PIN<=6) ) || \
-           ((IR_SEND_PWM_PIN>=9) && (IR_SEND_PWM_PIN<=6) ) || \
+           ((IR_SEND_PWM_PIN>=9) && (IR_SEND_PWM_PIN<=13) ) || \
            ((IR_SEND_PWM_PIN>=16) && (IR_SEND_PWM_PIN<=19) ) || \
 		   (IR_SEND_PWM_PIN==21) || (IR_SEND_PWM_PIN==22) ) )
      #error "Unsupported output pin Adafruit Feather M4 Express"
   #endif
 #elif defined (ADAFRUIT_GRAND_CENTRAL_M4)
   //Settings for Adafruit Grand Central Metro M4. Default is 9.
-  //Available 2-10, 12-14, 23-28, 30-31, 38-39, 59-61(A12-A15), 69(A3)
+  //Available 2-10, 12-14, 18-19, 23-28, 30-31, 38-39, 59-61(A13-A15), 69(A2)
   #define IR_SEND_PWM_PIN 9
   #if (! ( ((IR_SEND_PWM_PIN>=2) && (IR_SEND_PWM_PIN<=10) ) || \
            ((IR_SEND_PWM_PIN>=12) && (IR_SEND_PWM_PIN<=14) ) || \
+		   (IR_SEND_PWM_PIN==18) || (IR_SEND_PWM_PIN==19) || \
            ((IR_SEND_PWM_PIN>=23) && (IR_SEND_PWM_PIN<=28) ) || \
 		   (IR_SEND_PWM_PIN==30) || (IR_SEND_PWM_PIN==31) || \
 		   (IR_SEND_PWM_PIN==38) || (IR_SEND_PWM_PIN==39) || \