Customize annotation IDs

**Is your feature request related to a problem? Please describe.**
Is it currently possible to customize the format of the automatic annotation IDs? The current random strings, although very unique, are not very human readable and referable.

**Describe the solution you'd like**
Preferably, it would be nice to have support for different kinds of IDs, for example based on the annotation type (e.g. class, entity) or based on the task (e.g. `task :`) or the like.

**Describe alternatives you've considered**
Most importantly, I would love to know what parts of the code governs this to address it myself or modify it locally.