[FEATURE] Add Dockerfile for local development environment.
[FEATURE] Add Dockerfile for local development environment.

whotooktwarden/gatewayd,zealord/gatewayd,xdv/gatewayd,crazyquark/gatewayd,Parkjeahwan/awegeeks,Parkjeahwan/awegeeks,whotooktwarden/gatewayd,xdv/gatewayd,zealord/gatewayd,crazyquark/gatewayd