Added "class" attribute = "people", to Entities whose name contains "man". Just for testing Einstein puzzle.
Added small test maps.
Merge branch 'PlannerIntegration' of https://github.com/opencog/unity3d-opencog-game into PlannerIntegration
Added a sand block to the middle of the water in the test planner small map
Merge branch 'PlannerIntegration' of https://github.com/opencog/unity3d-opencog-game into PlannerIntegration