Updating to use new XESS VHDL library.
Integrating new library into design examples.
Removed LedDigitsWings since it's more of a StickIt! project. Moved test jigs for HCSR04 ultrasonic sensor and random number generator to their respective library files.
Changed from using XuLA2/FPGA/XuLA_lib to using new unified VHDL library.
Edited to reflect changes in organization of the projects.
Added FPGA projects for the XuLA2-LX9 board.
Reverted these older XuLA2 projects so they still use the old library modules.