0.9.1

• Simplify singleton calls, default arguments, node bindings, and script imports.
• Call other Rust scripts' methods and access their properties directly, with
  support for custom Rust Resources.
• Declare signals more concisely, connect methods with compile-time type checks,
  and await signals to receive their arguments.
• Add asynchronous tasks tied to a script's lifetime, automatically cancelled
  when the script is destroyed or replaced during hot reload.
• Fix premature resource release and references targeting the wrong node,
  reduce allocations when emitting signals, and improve error messages.