toolchain

All the tools in prjxray should have an xc7 prefix, so to make them unique.

E.g. bitread or bittool could enter in conflicts with other tools names.

for example replace stdio.h with cstdio throughout all the projects. and so forth...

During the work on merging #1419 I figured out that the basic BUFGMUX example works differently on Arty Board and Nexys Video.

The example uses three LEDs:

• led[2] - blinks with slow frequency
• led[1] - blinks with high frequency
• led[0] - blinks with the same frequency as led[2] or led[1] depending on sw[0] state.

On the Arty Board, the example works as intended. On Nexys Video, when