v2.0.0-dev.40

• Please refer to https://fzyzcjy.github.io/flutter_rust_bridge/guides/miscellaneous/whats-new for what's changed in V2.
• Support returning types with non-static lifetime (i.e. borrowed types / reference types) #2088 #2093
• Loosen config field rust_input syntax with delimit , #2092 (thanks @dbsxdbsx)
• Add prefix for automatically generated get/set methods of #[frb(opaque)] types to avoid conflicting with existing methods #2090 (thanks @dbsxdbsx)
• Support adding arbitrary code in generated Rust file via rust_preamble config #2086
• Support ignoring a whole module by #[frb(ignore)] on module #2085
• Support /// frb:... #2085