Start using idl parsing for basic_info and media clusters

[andy31415]

These could not be imported previously because some structs in their definition use optional and nullable.

Changes

• pass in the matter_rs crate name into the matter IDL macros, so we can reference things like matter_rs::traits::Nullable
• Addeed hash and eq to nullable, since that seems required for our derive macros for structs
• add matter IDL parsing into basic_info and media_playback. For now just use the clusterid from there (as a compile test)
• add unit testing for code generation for nullable and optional field support.