TestRes scheduler - scheduler of the NCBI internal regression testing framework (TestRes)

Started as testipub replacement (CXX-2091)
1. Manages hierarchial test structure (branch) with multiple kernel versions
2. Allows tests and groups tagging and arbitrarily selection for execution
3. Handles framework (kernel) versioning

TestRes Scheduler Package includes:
1. TestRes scheduler
2. tr-dev (console test development environment) scripts
3. presenters
4. cgis
5. TeamCity integration scripts

