Adding configurable DebounceDivThreshold

Can be specified from any .kll file

DebounceDivThreshold = 0xFFFFFFFF
Sets to max debounce, default is 0xFFFF.
The 0xFFFFFFFF is about a 2x longer debounce
The max requires more ram (as it uses 32 bit variables instead of 16).

Added support for submodule capabilities files.

Scan/MatrixARM/capabilities.kll

@@ -0,0 +1,20 @@
+Name = MatrixArmCapabilities;
+Version = 0.1;
+Author = "HaaTa (Jacob Alexander) 2015";
+KLL = 0.3a;
+
+# Modified Date
+Date = 2015-02-28;
+
+# Defines available to the MatrixArm sub-module
+# This debounce scheme uses a rolling counter for press/unpress on each key
+# Each counter is incremented if pressed/unpressed and the opposite counter is divided by 2
+# Using the default division threshold (0xFFFF), there are approximately 13 cycles in a perfect cycle
+# If debounce is actually necessary, this will increase (better switches will debounce faster)
+#
+# The maximum threshold is 0xFFFFFFFF, which will give around ~32 -> 36 cycles per perfect cycle
+# Using a threshold higher than 0xFFFF will require 32 bit variables, and double the ram usage.
+DebounceDivThreshold => DebounceDivThreshold_define;
+DebounceDivThreshold = 0xFFFF; # Default debounce
+#DebounceDivThreshold = 0xFFFFFFFF; # Max debounce
+