FTS installation overwrites existing config

[naman108]

when installing new fts instance the config should be iterated over line by line and new parameters should be added as necessary to maintain existing configuration.

[jonaugustine]

@naman108

I have an idea: The person who is executing the role perhaps should be given the option to choose between:

1. A complete overwrite of an existing configuration. This may be good for the case of a new install of FreeTAKServer.
2. Maintain the current configuration and (as you mention) add new parameters as necessary.

In any case, a copy of the configuration should be made before any changes are made to the configuration, whether only some parameters are updated or all parameters are updated.

[brothercorvo]

I vote for option 2.