Several size optimizations. Savings of ~68KB.

Remove shared build. libwangle is only used by fbthrift. Just use the
static version.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Added Maintainer.

Rearranged Makefile for consistency.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Simplify dependencies.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Wangle is a framework providing a set of common client/server
abstractions for building services in a consistent, modular, and
composable way.

tested with: master on nbg6817 and arc700.

Signed-off-by: Amol Bhave <ambhave@fb.com>