message: Restore freebsd and windows keys
  so they can be used in the flatc link options
diff: @@ -8,6 +8,17 @@ exports_files(["LICENSE.txt"])
  licenses(["notice"])
  +config_setting(
  + name = "freebsd",
  + values = {"cpu": "freebsd"},
  + visibility = ["//visibility:public"],
  +)
  +
  +config_setting(
  + name = "windows",
  + values = {"cpu": "x64_windows"},
  +)
  +
  load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
  # Public flatc library to compile flatbuffer files at runtime.
  