Add a platform that uses any pool (#141)

diff --git a/configs/experimental/windows/0.1.0/BUILD b/configs/experimental/windows/0.1.0/BUILD
index 16107a5..e5dbdc1 100644
--- a/configs/experimental/windows/0.1.0/BUILD
+++ b/configs/experimental/windows/0.1.0/BUILD
@@ -25,6 +25,24 @@
 # into this BUILD file it's not possible. As a compromise, provide one platform
 # for each of the default pool, and three generic Windows pools.
 
+# RBE Windows 1803 image that uses any pool.
+platform(
+    name = "rbe",
+    constraint_values = [
+        "@bazel_tools//platforms:x86_64",
+        "@bazel_tools//platforms:windows",
+    ],
+    remote_execution_properties = """
+        properties:{
+          name:"container-image"
+          value:"docker://gcr.io/rbe-windows-test-images/windowstest@sha256:81b032d1496868a5b415973e33a0fa4076e5136dc9dc59ba816dde1f3716db80"
+        }
+        properties:{
+          name: "OSFamily" value: "Windows"
+        }
+        """,
+)
+
 # RBE Windows 1803 image that uses "default" pool.
 platform(
     name = "rbe_default",
@@ -40,6 +58,9 @@
         properties:{
           name: "OSFamily" value: "Windows"
         }
+        properties:{
+          name: "Pool" value: "default"
+        }
         """,
 )