Make additional targets publicly visible

The admin console needs public visibility for additional targets.

//java/com/google/domain/registry/tools/params
 - Needed for the Whois test server
//java/com/google/domain/registry/whois
 - Needed for reusing WhoisHttpServer in the whois appengine module
//javatests/com/google/domain/registry/server
 - Needed for the Whois test server

javatests/com/google/domain/registry/server/BUILD

@@ -3,6 +3,7 @@ package(default_visibility = ["//java/com/google/domain/registry:registry_projec
 
 java_library(
     name = "TestServer",
+    visibility = ["//visibility:public"],
     srcs = [
         "HealthzServlet.java",
         "Route.java",