v2.0.0-rc.17 - General upgrades

This release comes with a handful of small incremental improvements primarily targeted at the next release of Tauri Specta including:

• specta-jsdoccrate for JSDoc exporting. This crate is still a work in progress.
• Move function::fn_datatype and function::collect_functions from proc macros to macro_rules
• Remove pub use datatype::* from the crates root. Imports must be updated to be from specta::datatype::... instead.
• Merge specta_typescript::ExportConfig into specta_typescript::Typescript
• Handle removing r# from the function name directly in Specta (previously we handled this at the Tauri Specta level)
• Add aditional time types (#275) thanks @agasparovic