Give core registry libraries public visibility

This is so Donuts can create entirely separate Bazel repositories that
link against the Domain Registry codebase.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=116182448

java/com/google/domain/registry/ui/forms/BUILD

@@ -4,6 +4,7 @@ package(default_visibility = ["//java/com/google/domain/registry:registry_projec
 java_library(
     name = "forms",
     srcs = glob(["*.java"]),
+    visibility = ["//visibility:public"],
     deps = [
         "//java/com/google/common/annotations",
         "//java/com/google/common/base",