Restored extra dir level for universal includes

This extra level is necessary to do linked inclusion. Without the extra
level of nesting, including the root include directory will build all
msp device libraries (which will cause build errors). When linking to an
include directory, the link should point to the device-specific
directory (which should contain a symbolic link to the generic msp
includes). Silly issue that I've resolved in the past and re-created by
restructuring the directories.

Also added links for each currently supported part and corrected some
include files which pointed to the old path.
f5510/clock: Cleanup and renames, added TODO

Cleaned up the clock library for the F5510 and added a TODO entry to the
clock.h. Need to add more complete functionality to make this a globally
useful library.
Added a gitignore for example projects

Don't want to include workspace metadata, personal settings, or debug
directories/files
g2553/clock: Added the G2553 clock library

This clock library supports all of the major functionality provided by
the MSP430G2553 basic clock module. The goal is to simplify integration
and enable more code portability and re-use between platforms.
g2553/launchpad/blink: Blink example for G2553

This example blinks an LED on the TI Launchpad for an MSP430G2553. The
example makes use of the AB2 clock and pin_fw libraries, demonstrating
their usage in a basic scenario.
Updated the examples readme markdown file
g2553/clock: Make init more clear

Allow initialization of custom values and specify that the default init
function is just that.
g2553/clock: Define instance of AB2_CLOCK

This definition can be used in other libraries or source files to
perform certain actions if the AB2_CLOCK is available.
g2553/uart: Added G2553 UART library

This library facilitates using the G2553 UART. APIs are provided for the
most typical UART operations, and examples are provided to ease
integration as well.
g2553/pin_fw: Define instance of AB2_PFW

This definition can be used in other libraries or source files to
perform certain actions if the AB2_PFW is available.
README: Updated with the latest structural changes
Updated the examples and libraries md files
AB2: Add a boolean type

The boolean type is very commonly needed, so add a type for it in the
global ab2.h include. The type is called bool_t and consists of FALSE
and TRUE.