- don't include debuggin info / minify development builds - cuts development binary size from 200Mb to 69Mb.
- generate symbols file
- modify template to download this symbols file on the fly on a crash and use it generate an unmangled and unminified callstack. ( we now have real callstacks for shippign builds!)
#codereview josh.adams , james.moran
[CL 2556055 by Ankit Khare in Main branch]