Adds an optional flag (-c) to the netmaker binary
for passing in an absolute path to a netmaker config
file.
Example:
netmaker -c /etc/default/netmaker-server.yaml
Signed-off-by: John Sahhar <john@gravitl.com>
* Adds a test for parsing the dev.yaml config included in the repository
* Changes readConfig() to return an error in addition to the envrionment
config
Signed-off-by: John Sahhar <john@gravitl.com>