ADAFRUIT GP9002 VFD Driver supporting grayscale display, requires GFX-Library Note no "invert" function, also fixed timing issue in "begin"

Dependencies:   bitreversetable256

Dependents:   GP9002af_gray

Fork of Adafruit-GP9002-Graphic-VFD-Library by Oliver Broad

Revision:
3:0a38cff87d2e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bitreversetable256.lib	Mon May 09 09:29:03 2016 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/oliverb/code/bitreversetable256/#3b7549f5f018