`mini` example domain incorrectly split in sub projects

the mini.base, mini.building. mini.is definitions are mixed and need some clarification as the intent of this is to split the concepts in several sub projects. (and in the future demonstrate partial evaluation thanks to domain slicing/debloating)

example use of this domain should go in project abs.model/*.mini.*.abs.model.example

If a bigger domain with all AssetType are grouped in a single project is required, then it must go in a separate project (name suggestion allinone ?)