Functions are namespaced under the "app name", e.g.
/sample/uppercase is the "uppercase" function in the "sample" app.
Also added a README to get started quickly.
The controller doesn't need to know the mappings, and it helps
to keep them closer to the actual AppDeployer, so in a future
change we can use the app names to look up functions.
Should be easy enoug hto add back later, but it was causing issues
with type conversion where we are npot yet sophisticated enough
to chain functions together and keep track of the types being
passed between them.
User can POST to web endpoint in SSE style, i.e:
HTTP/1.1
Content-Type: text/event-stream
data:foo
data:bar
Will be converted to a Flux with values foo and bar
Make it deployable via its maven coordinates in
spring-cloud-function-deployer (it is deployed by default on start
up right now, but that's just a demo)
