[Development] Access git private repo for library

[xellos00]

[Development]

Please, Fill out table briefly.

Type	Expected Output	Referenced items or link	Comment
DEV	Access git private repo for library	https://github.com/dsrvlabs/vatz/discussions/19	as previous vatz discussion, it's about import Go lang Library when user want to develop or run go application

1.1. Requirements

I want to be done for following.

• Provide the methods to import libraries per branches.
• Vatz-proto must be accessed when Vatz import any pb files located vatz-proto
• When start server there's shouldn't be any of error meesage due to import pb, or any github related library.
• Add private repo on go.mod

1.2. Expected output in details

• Vatz grpc Server must be running properly on linux machine

1.3. Test method

• Provide Vatz library import on assigned protocol machine.

[xellos00]

@hqueue I close this issue and link to new issue to commit into main branch set up a private repo to import.