RetroBSD/retrobsd ac9ef0esys/include gpanel.h, sys/pic32 gpanel-spi.c gpanel-spi-ili9341.c

Add sgpanel driver: a generic TFT LCD graphics panel with SPI interface.
Currently only ILI8341 chip is supported.
DeltaFile
+499-0sys/pic32/gpanel-spi.c
+371-0sys/pic32/gpanel-spi-ili9341.c
+72-0sys/pic32/wf32/Config-adafruit
+2-1sys/pic32/devsw.c
+2-1sys/pic32/Config.generic
+2-1sys/pic32/wf32/Config
+2-0sys/pic32/files.kconf
+2-0sys/include/gpanel.h
+952-38 files

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