pcb-rnd - indentation

As of r1022 all old code is converted using indent(1). Our preferred coding style is close to what the following command line produces:
indent --line-length128 -brs -br -nce --tab-size2 -ut -npsl  -npcs -hnl -cli2 -ncs

Contributors are kindly asked to follow this style or run the above commandline on their new code before sending a patch or committing to svn. The style of existing code lines should not be changed, not even the "sorrunding" lines to a largish patch, especially not in the same patch/commit with actual code changes.