Tests use old python logging instead of spdlog

[timkrentz]

Most current tests were written with the old Python logging framework.
Component files need to be modified to import spdlog.
NOTE: spdlog FileLoggers need to be flushed and closed at component destruction

[MMetelko]

@timkrentz Does anything else need to be done here? Looking at the code and previous commits along with our switch back to a custom spdlog for network logging, this request now seems to be satisfied. Please verify this assumption.