v0.2.0

Added

• Generic support for wrapping mutexes that implement the traits provided by the
  lock_api crate. This can be used for creating support for other mutex providers that
  implement it.

• Support for parking_lot mutexes. Support includes type aliases for all
  provided mutex types as well as a dedicated Once wrapper.

• Simple benchmark to track the rough performance penalty incurred by dependency tracking.

Breaking

• The library now requires edition 2021.

• The Mutex- and RwLockGuards now dereference to T rather than the lock guard they wrap. This
  is technically a bugfix but can theoretically break existing code.

• Self-cycles are no longer allowed for lock dependencies. They previously were because it usually
  isn't a problem, but it can create RWR deadlocks with RwLocks.

Changed

• The project now targets edition 2021