Moclo

Changed

* Make `moclo.registry.utils` a private module (`moclo.registry._utils`)
* Improve annotations of `AbstractVector.assemble` result record.

Fixed

* Fix `AbstractPart` subclasses not being recognized as abstract
by `inspect.isabstract`

Added

* Make `AbstractVector.assemble` add an alphabet to the generated sequence

Documentation

* Improve README of the `moclo` core library

Initial release.