renamed aron converters, added new aron filters and similarity, added memory_conversions to make code look nicer

# Conflicts:
#	source/RobotAPI/libraries/armem_skills/CMakeLists.txt
#	source/RobotAPI/libraries/armem_skills/server/segment/ExecutableSkillLibrarySegment.cpp
#	source/RobotAPI/libraries/aron/similarity_measure/CMakeLists.txt

Make point cloud in ARON work for PCL 1.8

See merge request !341

Merge fabianpk dev branch

See merge request !337

Test/fabianpk

See merge request !338

# Conflicts:
#	source/RobotAPI/libraries/armem_skills/server/segment/ExecutableSkillLibrarySegment.cpp

# Conflicts:
#	source/RobotAPI/libraries/armem/core/base/EntityInstanceBase.h

Rename time created

See merge request !330

# Conflicts:
#	source/RobotAPI/libraries/armem/core/base/EntityInstanceBase.h

Fix/improve cppgen

See merge request !336

fix codegeneratio of extending objects. Make toAron and fromAron methods virtual. Add special base classes for objects and enums which allow template calling of toAron and fromAron methods