Add a 'Binary' builder

The current CCaaS builder is great for chaincode development and debugging however it is not simple enough when trying out Fabric for the first time. The old built in docker-in-docker chaincode support is superficially simpler but often causes problems when the chaincode fails to build, which can be hard to debug.

While a simple binary builder is unlikely to be suitable in a production environment, it would provide a more robust mechanism to deploy chaincode out of the box and give a better first impression. It may also make it possible to deprecate the old docker-in-docker approach in v2.5 and remove that mechanism completely in v3, although that would also depend on the ability to package Binary (and CCaaS) chaincode.

cc @denyeart @mbwhite