Adding analog.c lib from teensyduino.

- Mostly for reference, you shouldn't include it verbatim in your module.

Scan/ADCTest/setup.cmake

@@ -0,0 +1,33 @@
+###| CMake Kiibohd Controller Scan Module |###
+#
+# Written by Jacob Alexander in 2014 for the Kiibohd Controller
+#
+# Released into the Public Domain
+#
+# ADC/DAC example. DAC only works on microcontrollers that support it.
+#
+###
+
+
+###
+# Module C files
+#
+
+set( SCAN_SRCS
+	scan_loop.c
+	analog.c
+)
+
+
+###
+# Module Specific Options
+#
+
+
+###
+# Compiler Family Compatibility
+#
+set( ScanModuleCompatibility
+	arm
+)
+