Add a param --server-name to support providing server_name for gradio

[GuangChen2333]

Description

1. Remove func get_port_from_args()
2. Add func get_value_from_args() to enhance code reusability.
3. Add some type annotations to params and returns
4. Add param --server-name <ip> for gradio

Motivation and Context

Some time we need to run it with ip 0.0.0.0 but now it couldn't do that.

How has this been tested?

I run that on my local server bcz I think it is a tiny change for the code.

Screenshots (if appropriate):

None.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.