Create config file that can be read by server and change settings.

[kochie]

Implement a config file such as config.json or config.yaml that can pass options to the server such as;

• port number
• mongo hostname

So far the following items have been completed;

• config.json created with template data
• config.yaml created with template data
• Read the config data from the files.
• Create a template struct in Go.