Warzone 2100 Graphic Mods tools

New backtrop replcing logo backdrop7.png

Changes the wrong flag on relay centre correction made

adding no shadows flag to relay and try remove error from blresch4

Clean Wulfkind build directory to import qt branch

Adding New relay centre and texture page 119

adding files for forcefield pie and texture

New version of video dumper. This one writes all frames to a single ppm file
and uses ffmpeg magic to process it into video.

rescaled backdrops to try and work around code changes that made them clipped
temp fix

More tweaks to forcefields.

Reduced the strength of the forcefields by 50%