Create config yaml file(s) for use by tests

[jamessynge]

I want a config file that can be used by the dome tests, and it makes sense to have another such config file for the bisque tests.

The existing POCS/conf_files/pocs.yaml seems to really be the local file for PAN001. Perhaps we need to have some other file as the base yaml file?

Regarding tests, we could use a separate file such as pocs_test.yaml, or even multiple such files so that we can test the effect of having different numbers of cameras, or different state machines. I can't add a dome section to pocs.yaml without it affecting PAN001 and PAN006.

[wtgee]

Sorry, this is mostly a documentation issue.

$POCS/conf_files/pocs.yaml is the default config file that should be used for tests and to verify the software runs. It's mostly meant as an example. Any file in the $POCS/conf_file/ directory can have a foo_local.yaml version that will override and add to the foo.yaml file. pocs.yaml should never be altered (for normal usage), which is why it is part of the repository. A local unit should therefore have a $POCS/conf_files/pocs_local.yaml file for any local-specific settings.

[wtgee]

Will be closed by #951.