feat: make substrait repo a go module

[anshuldata]

This facilitates substrait assets use in go projects

[jacques-n]

Looks good to me. Have you confirmed that you can use this in substrait-go? I believe you can do a go get against your fork+hash somehow and test.

[zeroshade]

You can use a replace directive in the go.mod locally to point it at this branch. If you need I can provide the exact commands tomorrow via go mod edit to help out.

[anshuldata]

Looks good to me. Have you confirmed that you can use this in substrait-go? I believe you can do a go get against your fork+hash somehow and test.

yes, I confirmed by creating a module which has same go.mod and core.go and accessing that referring this module in substrait-go. "go get" gets to local cache and pushes to go package repository too

[anshuldata]

You can use a replace directive in the go.mod locally to point it at this branch. If you need I can provide the exact commands tomorrow via go mod edit to help out.

yes, I tested it using "replace" directive to locally point to this repo

[jacques-n]

@zeroshade , look good to you?

[zeroshade]

It might be worth adding a small test for this? But otherwise this seems fine to me.

It also might be worthwhile adding a package level comment and maybe a testable example showing how to use the FS?

[jacques-n]

Comment seems useful. I'm inclined to avoid adding any tests/extra stuff here. Really figure people will primarily use via substrait-go as opposed to direct.

[anshuldata]

It also might be worthwhile adding a package level comment and maybe a testable example showing how to use the FS?
Added comment

I'm inclined to avoid adding any tests/extra stuff here
I have skipped adding test case