Simplify code base related to admin functionalities #64
Description
For clearer code move dao functionality used from admin management console to their own classes. Currently AdminServices call other services which then call dao functionality. This creates unnecessary complexity to the code. Refactor the code so that functions in other services which are only called from admin and only call dao are moved so that there are AdminDao classes that have that dao functionality. This way the pointless middleman service is eliminated and code complexity reduced.