pw_rpc: Adds Bazel support for RPC

Adds initial support for c++ RPC libraries. This change only
supports the raw RPC protocol.

Change-Id: Icdecc14f1b8be03120330094793315f807deb3ec
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/43921
Reviewed-by: Wyatt Hepler <hepler@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>
diff --git a/WORKSPACE b/WORKSPACE
index 9c25067..b37b8e3 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -54,7 +54,7 @@
 protobuf_deps()
 
 # Setup tools to build custom grpc rules.
-# Regquired by: pigweed.
+# Required by: pigweed.
 # Used in modules: //pw_protobuf
 http_archive(
     name = "rules_proto_grpc",
@@ -63,7 +63,11 @@
     urls = ["https://github.com/rules-proto-grpc/rules_proto_grpc/archive/1.0.2.tar.gz"],
 )
 
-load("@rules_proto_grpc//:repositories.bzl", "rules_proto_grpc_repos", "rules_proto_grpc_toolchains")
+load(
+    "@rules_proto_grpc//:repositories.bzl",
+    "rules_proto_grpc_repos",
+    "rules_proto_grpc_toolchains",
+)
 
 rules_proto_grpc_toolchains()