Superbenchmark executor: online inference config file and custom repo link

[LiYueqian-James]

Added support for

1. Feeding an online inference config file as a link, without the need to zip into packages and upload to storage account
2. Feeding a different superbenchmark repo link other the default microsoft SB repo. Some users have added more benchmark to their own version of superbench and can use this method run them in VC.

[yangpanMS]

Could we do this instead: you are allowed to use extra dependency (for example git clone) in the profile, and you give it a package name. You then could reference the file you cloned by path.

[LiYueqian-James]

Could we do this instead: you are allowed to use extra dependency (for example git clone) in the profile, and you give it a package name. You then could reference the file you cloned by path.

so it's not just about inference config file. some people have created their own SB benchmarks (in their own repo) and want to run those. The official one do not have these benchmarks. That's why I added a parameter for repoLink