oaisim stability improvements
This issue (and corresponding branch) fixes some issues of oaisim
So far this has been done:
- improved gain control for oaisim
- updated testcase list options for oaisim
- XFORMS now command line options for oaisim and unitary sims
- build script improvements for sudo; HW=None and XFORMS=1 now default
- fixed computation of SINR in abstraction mode and made adaptive to bandwidth