CMakeLists and Readme updates.

This version of the cmakelists includes a hal directory, but i haven't
yet figured out how to make that work, so this is fairly broken.

components/FastLED-idf/CMakeLists.txt

@@ -11,9 +11,10 @@ set(srcs
 		"platforms.cpp"
 		"power_mgt.cpp"
 		"wiring.cpp")
+
 # everything needs the ESP32 flag, not sure why this won't work
 # going to hack by adding the ESP32 define in the h file
 	#`target_compile_options(${COMPONENT_LIB} PRIVATE "-DESP32")
 
 idf_component_register(SRCS "${srcs}"
-			INCLUDE_DIRS "." )
+			INCLUDE_DIRS "." "./hal" )