modularizing BangleJS

So here is where i'm housing the code i'm working on. I haven't fully tested this but it shouldn't be far off from what I'm expecting.

Hardware drivers folder

So this branch is just working on the backlight. One thing you'll notice is i had to move around a decent amount of code. This is because there's so much stuff that's defined inside the "jswrap_bangle.c".

So i'm planning on there being 3 types of files.

• jswrap_bangle_xxxx - hold all the jswrapper function
  
• banglexxxximpl - will hold the generic implementation. So many function with no definitions
  
• banglexxxxhandware_name_impl - the device specific funtions
  
  

Devices folder

Holds defines and will hold probably some simple setup function.

bangle_defines.h

Which holds all the enums from jswrap_bangle.c
It holds references to the global state of bangle. These are mostly timers and bangleState and flag.