NeXosim macros

This crate contains the procedural macros used by the nexosim crate:

• Message: a derive macro which enables schema generation for server endpoints,
• Model: an attribute macro which automatically implements the Model trait and recognizes the following attributes:
  • #[nexosim(schedulable)]: registers a model input method as schedulable with the schedulable! macro,
  • #[nexosim(init)]: annotates a method implementating the Model::init method,
• schedulable!: a function-like macro that enables models to schedule their own methods without need to register such method beforehand.