Breaking changes
- The API doesn't show `pulser.Pulse` or `pulser.Register` anymore. Instead, we have `qek.target.targets.Pulse` and `qek.target.targets.Register`.
- `compile_pulse` now accepts normalized amplitude and duration, instead of absolute values.
Other changes
- We now have two implementations of the kernel
-`FastQEK`, which is an alias for the existing `QuantumEvolutionKernel`;
-`IntegratedQEK`, which works only with the high-level API and integrates better within standard machine learning workflows, but is slower
- both `FastQEK` and `IntegratedQEK` now let users customize the similarity metric
Documentation
- Minor typo fixes.
- A few minor improvements to tutorials.