change this to be built with make and goreleaser

[maguec]

Include a make file and a gorelaser file for easier build processing

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[yfuruyama]

Hi @maguec, thank you for filing this PR.

Could you elaborate on the context of this change?

If you want to have a binary, we can use go build or GOOS=linux GOARCH=amd64 go build to build a binary for target OS. I don't think we need to let users install goreleaser to get the binary.

[maguec]

Make file just helps people get started quicker and goreleaser file for those who prefer it and if we want to release binaries on Github for other people who may not be able to build

[yfuruyama]

Thanks for your comment.

So I think there are two changes here: Makefile and Goreleaser.

For Makefile, it's mainly for developers for this project to build and test, but currently there are no complex build pipeline here. They can use idiomatic go build and go test instead of using make build and make test.

For Goreleaser, it can be used for releasing the binary for this tool, but I haven't decided yet how to distribute the binary for users who don't have go installed. This tool is supposed to be used for local development, so I assume that users are likely (or willing) to have go on their local environment.

For now I'd like to decline to merge this change, but let me consider this change again if we decide releasing binary with Goreleaser. Does that sound good for you?