[WIP] Attempt at building grpc and p4runtime protocols with Bazel

STILL NOT WORKING AT RUNTIME

Change-Id: I1f9e60b12a12e09edad2a714ec2921a4f71c6d35
diff --git a/tools/build/bazel/pi_BUILD b/tools/build/bazel/pi_BUILD
new file mode 100644
index 0000000..307df5e
--- /dev/null
+++ b/tools/build/bazel/pi_BUILD
@@ -0,0 +1,12 @@
+package(default_visibility = ["//visibility:public"])
+
+proto_library(
+    name = "p4config_proto",
+    srcs = ["p4/tmp/p4config.proto"],
+)
+
+java_proto_library(
+    name = "p4config_java_proto_native",
+    deps = [":p4config_proto"],
+    visibility = ["//visibility:public"],
+)