Add u8glib library supporting dot matrix displays

https://code.google.com/p/u8glib/
Universal Graphics Library for 8 Bit Embedded Systems

ArduinoAddons/Arduino_0.xx/libraries/U8glib/INSTALL.TXT

@@ -0,0 +1,21 @@
+
+U8GLIB
+http://code.google.com/p/u8glib/
+
+
+Install instructions for the Arduino environment.
+
+  1. Unzip u8glib_arduino_vX.XX.zip into the "libraries" folder
+  2. Start Arduino IDE
+
+Install instructions for the Chipkit (Arduino) environment.
+
+  1. cd <mpide-... path>/libraries
+  2. unzip u8glib_arduino_vX.XX.zip
+  3. cd <mpide-... path>///hardware/pic32/libraries
+  4. again: u8glib_arduino_vX.XX.zip
+  5. Open hardware/pic32/cores/pic32/Print.h
+	  Remove line
+	    #define BYTE 0
+	  from the file, use PRINT_BYTE instead of BYTE. 
+