Added the Checkout-example as odemx- and odem-rs-project. Implemented channels with custom priority queues (via BinaryHeap).

Extensive work on the documentation and creation of a suitable project logo: an hourglass (representing time) inside a cog wheel (representing Rust).

Changes to the Fiber-API: builder-pattern and Settle-trait in favor of CanonicalFuture + slight changes to the Process-builder.

Improved safety of no_std tracing by implementing LocalKey for that environment. Will simply panic if more than one thread tries to access the global simulator.

Fixed soundness issues with Irc, reduced allowed transitions in the Task state machine, improved documentation, cleaned up the calendar implementation, bumped version numbers, segregated modules for the core-lib, re-introduced join-operation on Pucks, moved the whole implementation to core rather than std.

Improved usability of the model_time!-macro by allowing references to the lexical context in the format string.

Improved usability of the model_time!-macro by allowing closures to be used in addition to normal function pointers.

Fixed external uses of the until!-macro by generating unqualified accesses in the control_expr!-macro and importing them manually in the macro_rules!-body.

Allowing method-calls in control variables for the until!-macro if they appear in the middle of a field- or index-access.

Decoupling of the type of event calendar from the simulation by creating a Scheduler trait and moving it into the Config.
Reduced semantics dependent on UB but more work has to be done.

Improved support for branding for Tasks and Fibers, restructured activation, minor cosmetic changes in the naming of internal types, updated the documentation.

Fixed two bugs: (1) panicking fiber didn't properly clean up the reference to the currently active fiber, leading to a panic during drop, (2) channels attempted to extract messages from waiting senders before accessing the buffer, which lead to inconsistent ordering of extracted messages.

Branding validity is now checked at runtime in debug mode and additional violations of stacked borrow rules have been removed. Code style has been improved using clippy, documentation links work properly.

Fixed even more bugs related to stacked borrow rules, but some of them still exist due to the auto retagging of referenced memory regions. They should not lead to any problems, though.

Generalized and improved branding, fixed some bugs connected to the experimental stacked borrow rules. More bugs to be fixed.

Introduced branded task states for less unsafety and clearer state management, debugged some undefined behavior under the experimental stack borrow rules, improved steps() iterator for simulation runs.

Fixed a major bug in CalendarV2. Scheduling results between V1 and V2 should now be identical (apart from V2 being stable).

Some bug fixes introduced through changes during the calendar refactoring. Still not working completely.