Make mongocxx install script more user friendly. Add a clear warning with what to do if mongocxx is missing.

new lib armem_robot and armem_robot_state => armem_robot is base for armem_robot_state and armem_objects

Revise armem core; remove virtual inheritance. Move constructors to base classes. Remove copy ctors and operators

renamed stuff, added namespaces to base classes, shortened namespaces of memories, fixed robotsensormemory memory name

WOrking Memory updates, new namespaces for wm and ltm, updated scenarios, adapted all dependent code. First compiling version

implemented diskMemory (better version than before), switched to enum class for aron descriptors, added ltm controls to memory viewer gui