When MC is running on a processor with a control subnet and a user
attempts to access the UI via the control subnet, the return _config.local.json
needs to reflect the CS LAN IP address for the processor rather than the LAN IP Address.
In order to accomplish this, there will now be 2 config files written to disk on startup:
1. the original file, /user/programX/mcUserApp/_local-config/_config.local.json
2. A file with the correct CS IP Address /user/programX/mcUserApp/_local-config/_config.cs.json
When a user requests the _config.local.json, the processor will compare the remote IP address
with the CS LAN IP Address and determine if they're in the same subnet, the assumption being
that if the IP Addresses are in the same subnet, then the app or end user is on the CS LAN and needs the CS config.
If the addresses are in the same subnet, then the contents of the _config.cs.json will be returned.
If the grant code was not provided, the `mobileadduiclient` console
command would fail silently. The command now checks that the correct
number of arguments was provided and prints an error to the console of
one is missing
In order to solve some dependency issues that keep cropping up, MC
should be moved back into the Essentials repo and loaded automatically
on startup. This will allow for all plugins that use the MC Messengers
library to use the same version without fear of overwriting a dll due to
loading of plugin libraries.