add `jsonrpsee` root crate (#260)

* add wrapper crate

* add jsonrpsee crate back

* [jsonrpsee]: feature gate modules

* [proc macros]: support crate renaming of `types`

* Update proc-macros/src/lib.rs

Co-authored-by: David <[email protected]>

* re-export types

* [proc macros]: remove unused features

* Update proc-macros/Cargo.toml

* fix bad merge

Co-authored-by: David <[email protected]>