feat(tools): add a tool to automate the generation of go_deps overrides

[tyler-french]

This PR creates a tool that converts either a repository macro file or a WORKSPACE into a set of go_deps.{}_overrides. This is supposed to ease the migration to Bzlmod.

For example, if you were to run on this go_repository rule:

    go_repository(
        name = "com_github_bazelbuild_bazel_watcher",
        build_extra_args = ["-go_naming_convention_external=go_default_library"],
        build_file_generation = "off",  # keep
        build_file_proto_mode = "disable",
        importpath = "github.com/bazelbuild/bazel-watcher",
        patch_args = ["-p1"],
        patches = [
            # Remove it after they release this PR https://github.com/bazelbuild/bazel-watcher/pull/627
            "//patches:com_github_bazelbuild_bazel_watcher-go-embed.patch",
        ],
        sum = "h1:EfJzkMxJuNBGMVdEvkhiW7pAMwhaegbmAMaFCjLjyTw=",
        version = "v0.23.7",
    )

It would output

go_deps = use_extension("@bazel_gazelle//:extensions.bzl", "go_deps")

go_deps.gazelle_override(
    build_extra_args = ["-go_naming_convention_external=go_default_library"],
    build_file_generation = "off",
    directives = ["gazelle:proto disable"],
    path = "github.com/bazelbuild/bazel-watcher",
)

go_deps.module_override(
    patch_strip = 1,
    patches = [
        # Remove it after they release this PR https://github.com/bazelbuild/bazel-watcher/pull/627
        "//patches:com_github_bazelbuild_bazel_watcher-go-embed.patch",
    ],
    path = "github.com/bazelbuild/bazel-watcher",
)

Fixes #1675

[tyler-french]

@fmeum Can you also take a look to make sure all my test cases are accurate, and I'm not missing any situations we want to test.

[tyler-french]

Converting to draft to update docs to reference this tool

[tyler-french]

Converting to draft to update docs to reference this tool

Looks like these docs are in the rules_go repo.

[tyler-french]

Add more parameters to specify defaults, rather than hard coding them

[fmeum]

Looks great!