Provide Hot Threads and Thread Dump tool in Share-tier Admin Tools

[AFaust]

Although most of the business logic will be processed in the Repository-tier as the primary backend, in some instances it may be necessary to view the current state of Share-tier threads, e.g. to investigate a long running page render or data web script. Since we already have a Hot Threads and Thread Dump tool on the Repository-tier something similar could be provided on the Share-tier as well.