Gotty multi users and Docker and Helm

[stevelaclasse]

Hi all, and thanks to the author for this wonderful project,

I wanted to used Gotty for a personal project with a basic authentication for multiple users. I found another project were this functionnality was added : https://github.com/KubeOperator/webkubectl. In this project the Gotty original code was updated to support a credential file for basic authentication for multiple users. As the project also changes many others things in the Gotty original project, i have moved only the changes concerning the multiple users authentication in another repository. I also added a DockerFile and a Helm Chart to deploy it in a containerized environment. You can see those changes in this repository : https://github.com/stevelaclasse/gotty-multi-users-Docker.

I hope it may help someone.