* lnms config:set works for os settings
validate against os schema (gives us path and value validation)
fix unset in config:set
json formatted output in config:get to match input parsing
* inline errors
* Check that OS exists
* Fix lock file
* Set param type
* correct method name, it no longer returns a boolean
* rename --json to --dump
tests and fixes
* fix whitespace
* missed one whitespace
* typehints
* add connection typehint
* try again
