moved checkPassword/setPassword to lib/adapter.js, new method checkGroup in lib/adapter.js (cherry picked from commit 7593ae8)
moved checkPassword/setPassword to lib/adapter.js, new method checkGroup in lib/adapter.js
(cherry picked from commit 7593ae8)

Steiger04/ioBroker.admin,Steiger04/ioBroker.admin,ioBroker/ioBroker.admin,paul53/ioBroker.admin,ioBroker/ioBroker.admin,paul53/ioBroker.admin