A New Approach for a General TFT Library.

• The purpose of this Library and its design is to make additions easy.
• The initial commit served as "proof of concept", with HVGA TFT on MEGA, DUE, and 3.5" RPI HVGA on SPI
• This library supports a collection of TFT displays I bought to learn from and to learn from other libraries
• It supports some "exotic" displays for Arduino that were not made to use with Arduino IDE or Arduino boards
• I recommend to use other common Arduino TFT libraries whenever possible, as these are better supported
• my recommendations are MCUFRIEND_kbv, TFT_eSPI, and the whole range of Adafruit libraries

• update of conditional compile conditions to macros of actual STM32 package

• fix for STM32 official package pin number range (int16_t)

• added controller class GxCTRL_ILI9486_WSPI for RPi SPI ILI9486 displays
• this class works with the "special" SPI interface of Waveshare ILI9486 boards
• tested on Wemos D1 R2, Arduino Due, STM32 Nucleo-64 F103RB and L476RG

• added support for 4" ST7796S 480x320 34 pin TFT display

• added support for 3.97" NT35510 800x480 display
• added support for STM32F407VxT6 board with FSMC 34 pin female TFT connector
• details available here: http://www.lcdwiki.com/STM32F407VxT6_Board
• supported by classes GxIO_STM32F407VxT6_P16 and GxIO_STM32F407VxT6_FSMC

• added support for black STM32F103ZET6 M3 DEMO board
• supported by classes GxIO_STM32F103ZET6M3_P16 and GxIO_STM32F103ZET6M3_FSMC
• this board is similar to the black STM32F407ZET6 M4 DEMO board added in Version 2.1.0
• both boards have a female 34 pin connector for quite common 34 pin TFT displays

• added support for blue STM32F103ZET6 board
• supported by classes GxIO_STM32F103ZET6_P16 and GxIO_STM32F103ZET6_FSMC
• fixed pushColors methods
• implemented writeRect and pushRect methods (these were empty)

• added FSMC/FMC support for my Nucleo-144 proto board with FSMC/FMC TFT connector
• supported by class GxIO_STM32Nucleo144_FSMC using FMC for F767ZI and F746ZG
• tested with 3.2" ILI9341 on F767ZI

• added support for my Nucleo-144 proto board with FSMC/FMC TFT connector
• supported by class GxIO_STM32Nucleo144_P16 using bit-bashing for F767ZI and F746ZG
• tested with 3.2" ILI9341 on F767ZI
• FSMC/FMC version will follow, expected to be only slightly faster

• added support for BLACK_F407ZE STM32 board with FSMC TFT connector
• supported by classes GxIO_STM32F407ZET6_P16 and GxIO_STM32F407ZET6_FSMC

• all STM32 targets are now supported with official STM32 package from STMicroelectronics
• fixed a timing issue with OTM8009A support

• fixed rotation for SSD1283A for pushColors (rendering canvas ok for all 4 rotations)

• added support for 1.6" transflective SSD1283A TFT display
• added missing typecast for ESP8266 (pgm_read_dword)

• added 16 bit command transfers to all GxIO classes for parallel 16 bit interfaces to support OTM8009A
• added GxIO_DUE_P16_R_SHIELD class (variant of GxIO_DUE_P16_DUESHIELD, e.g. for rDuinoScope)

• new src directory structure avoids the need for .cpp includes
• only header files includes are needed
• Arduino IDE 1.8.x automatically includes needed code from .cpp files
• DO NOT include .cpp files with this version, linker would complain
• src directory structure makes GxTFT a more usual Arduino Library

• Added OTM8009A support for 3.95" & 4.7" TFTs with FSMC connector on STM32 boards

• Added FSMC GxIO classes for STM32 GxIO_STM32F1_FSMC and GxIO_STM32F4_FSMC and FSMC examples
• Added FSMC and P16 GxIO classes for STM32F407ZGM4 board

• Renamed GxIO classes for HVGA on MEGA and DUE
• Added read support to GxIO classes (partially tested only, some shields are output only).
• Updated GxCTRL and its subclasses; added GxCTRL_RA8875S
• Updated read support; read support is controller specific, issues remain to be investigated.
• Added GxTFT & RA8875P

• Added GxIO classes for TIKY 5inch display
• Fixed TIKY GxIO classes and GxCTRL_ILI9806

• HVGA on MEGA
• HVGA on DUE
• HVGA on SPI (3.5inch RPI Display)