initial commit: copy sources from SSD1289

I started project of new driver: SSD2119. This work is based on SSD1289.
I don't know exactly if this one is the most similar to my one. It's
just an experiment. There is no accompanying board file of any flavor,
but the hardware lying on my desk is Embest DM-STF4BB with DM-LCD35RT
LCD module.

Changes already made:
- Copied entire drivers/gdisp/SSD1289 directory into
  drivers/gdisp/SSD2119.
- Changed every occurrence of "SSD1289" to "SSD2119" in each source
  file.
SSD2119: created board file

Created board support file for Embest DM-STF4BB board with DM-LCD35RT
LCD module. You simply plug STM32F4DISCOVERY into it.
SSD2119: first working version of driver

It is a mix of barely changed few drivers already present in ChibiOS/GFX
project. No other routines than initialization ones were changed.
Properly displays "basics" demo.

Main features and changes:
- Based on SSD1289 and SSD1121 in FSMC mode.
- Uses FSMC module. Maybe oneday I will make GPIO version.
- LCD backlight PWM input is tied high (no timer yet).
- Added ssd2119.h with SSD2119 registers' addresses.
- Updated set_cursor and set_viewport functions. Not thoroughly tested,
  however.
- Rewritten GDISP_LLD(init)(void) function.
SSD2119: reorganization of files

- Added FSMC board file (_fsmc suffix) - working.
- Added GPIO board file (no suffix) - not working.
- Removed unneeded files.
SSD2119: code & comments cleanup
Merge branch 'master' into SSD2119
SSD2119: GDISP_LLD() macro removal
Merge branch 'master' into SSD2119
SSD2119: backlight control

- Backlight uses PWM on TIM4 CH2.
- Updated readme.
- Updated gdisp_lld.c: moved from lld_gdisp_* to gdisp_lld_* functions
  names format.
- One forgotten GDISP_LLD() macro removal.
- General code cleanup (make diff with -w parameter ;))
SSD2119: PWM period change

100 kHz PWM period made small induction coil onboard LCD to moan if the
pulse width was smaller than 100%. I changed it to 1MHz.
SSD2119: power control

All modes are working: powerOff, powerOn, powerSleep and powerDeepSleep.
SSD2119: orientation control

All angles supported: 0, 90, 180, 270.
SSD2119: updated scroll function name

Changed to new scheme: gdisp_lld_*.
SSD2119: GPIO board file removal

Removed GPIO board file. It did not work (it wasn't finished nor started
to be honest). It is always possible to make it, general idea is exactly
the same as in SSD1289 driver.
Merge branch 'SSD2119'
SSD2119: readme fix
Merge branch 'SSD2119'
Merge pull request #37 from resset/master

SSD2119 display driver