This change adds schema and codegen support for plain properties which
are emitted typed as the plain type rather than wrapped as an `Input`.
Plain properties require a prompt value and do not accept a value that
is `Output`.
Generate ResourcePackage and ResourceModule implementations and
registrations. A ResourcePackage is generated for any module that
includes a provider resource (which should be the root module only), and
a ResourceModule is generated for any module that includes a resource.
And add version info to Python registrations.
