bzl gazelle support overwrite resolve

[eeelin]

Support using gazelle:resolve directives to overwrite dependencies resolve.
Especially for some non-standard bzl naming, such as:

# gazelle:resolve starlark starlark @io_bazel_rules_docker//docker/util:run.bzl @io_bazel_rules_docker//docker/util
# gazelle:resolve starlark starlark @io_bazel_rules_docker//repositories:deps.bzl @io_bazel_rules_docker//repositories
# gazelle:resolve starlark starlark @io_bazel_rules_docker//repositories:repositories.bzl @io_bazel_rules_docker//repositories
# gazelle:resolve starlark starlark @rules_python//python:defs.bzl @rules_python//python:defs_bzl
# gazelle:resolve starlark starlark @npm//:vite/package_json.bzl @npm//:vite_bzl_library
# gazelle:resolve starlark starlark @npm//:docsify-cli/package_json.bzl @npm//:docsify-cli_bzl_library
# gazelle:resolve starlark starlark @npm//:typedoc/package_json.bzl @npm//:typedoc_bzl_library
# gazelle:resolve starlark starlark @npm//:api-spec-converter/package_json.bzl @npm//:api-spec-converter_bzl_library
# gazelle:resolve starlark starlark @rules_nodejs//nodejs:repositories.bzl @rules_nodejs//nodejs:bzl

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[fmeum]

@brandjon This would be pretty useful to have and looks simple enough, would you be available for a review?