Simplified Version of GxEPD for 32 Bit Arduino

• Waveshare e-paper displays with SPI: http://forum.arduino.cc/index.php?topic=487007.0
• Good Dispay ePaper for Arduino : https://forum.arduino.cc/index.php?topic=436411.0

• GxEPD2_32_Spiffs_Example, GxEPD2_32_Spiffs_Loader for ESP32

• bitmap handling fixes

• GxEPD2_32_SD_Example & GxEPD2_32_WiFi_Example for ESP32

• interim update with fixes & enhancements to 1.0.7 & 1.0.6
• renamed GxEPD2_32_SD_BitmapExample to GxEPD2_32_SD_Example
• GxEPD2_32_WiFi_Example and GxEPD2_32_Spiffs_Loader have download issue with big downloads

• added GxEPD2_32_Spiffs_Example
• added GxEPD2_32_Spiffs_Loader
• added GxEPD2_32_WiFi_Example

• added GxEPD2_32_SD_BitmapExample

• update and fix for additions of version 1.04

• Support for Bitmaps (Sprites) to Controller Buffer and to Screen
• the bitmaps can reside in RAM or ROM, parameter pgm, default RAM
• origin x and width should be multiple of 8, are rounded down
• cropping to screen dimensions is handled
• allows tiled drawing for bitmaps from SD, SPIFFS or WiFi download
• use e.g. writeImage(...) for each tile, followed by refresh() for all

• support for GDEW075Z09 7.5" 3-color moved to GxEPD2_32_3C
• not tested by me, but one user reported succesful use
• NOT RECOMMENDED, as it has extremely long refresh time reported

• additional font support, e.g. from https://github.com/olikraus/U8g2_for_Adafruit_GFX

• Example Bitmaps & 4.2" b/w fast partial update