grpcweb Directory Reference

Files
	grpcweb.cpp
	gRPC-Web message framing builder + parser (pure, host-tested).
	grpcweb.h
	gRPC-Web message framing (PC_ENABLE_GRPC_WEB) - zero-heap length-prefixed frame builder + parser, the HTTP/1.1-reachable subset of gRPC that wraps the Protobuf codec (services/iot/protobuf). gRPC proper needs HTTP/2; gRPC-Web rides the shipped HTTP/1.1 server/client.