Set up go project with private dependency

Set up go project with private dependency

# Set up go project with private dependency
Goal: 
 - Set up project with private dependency using go module.

## Using access token
 Override access token to your git config, so it would include username and access key, so that you would be able to use go get your private repo
 
```
git config --global url."https://${username}:${access_token}@gitlab.com".insteadOf "https://gitlab.com"
```

## Set go env GOPRIVATE
  To skip check sum
  
 ```
 go env -w GOPRIVATE=<your package>
 ```