constify bintime_add, bintime_sub, bintime2timespec, timespec2bintime, bintime2timeval and timeval2bintime.
constify bintime_add, bintime_sub, bintime2timespec, timespec2bintime,
bintime2timeval and timeval2bintime.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase