Add all special cases for Go importing WKT proto packages (#193)

When Go code generated from protos (via go_proto_library) import WKT
packages, they implicitly depend on targets in
@io_bazel_rules_go//proto/wkt. When static Go code imports the same
packages, Gazelle can resolve the dependencies differently. This
results in conflicting dependencies in many builds.

With this change, Gazelle has special cases for every target in
@io_bazel_rules_go//proto/wkt.

Fixes #159
2 files changed