This is more in line with wayland and it allows us to create new
interfaces in modules without having to add anything to the type
enum. It also removes some lookups to map type_id to readable
name in debug.
Move the core implementation to a separate file. Make a default
core object in the context.
Pass impl-core to server. We now tie the server to a core. Also
keep track of the core that a client connected to.
Fill the properties that we usually use to connect in the context
and copy them when a connection is made.
Use "internal" as the remote name to connect to the default
internal core.
The proxy API is the one that we would like to expose for applications
and the other API is used internally when implementing modules or
factories.
The current pw_core object is really a context for all objects so
name it that way. It also makes it possible to rename pw_core_proxy
to pw_proxy later.
