mod: update CRUD for some tables
add: load translatable attributes from DB and write them to message source
add: console controller to create and list admins
add: access control for user controller
del: unneeded classes
add: behaviors care for creating base for new user
mod: update Building AR
del: unneeded code
add: configuration for message extraction
add: extracted messages
mod: working on a dev login for local development (no external auth possible)
mod: behaviors care for dependant data when creating a new user
mod: don't use Yii in view
fix: missing use statement
mod: application config
add: provide link to dev login
fix: composer.json for current version of yii2
mod: DB schema
mod: DB schema