Merge of all branches of Fabian PK (related to skills)

• Merge improved SkillManagerGUI from Tobias Bodmer
• Fix aron code generation for classes without members

@reister. YOu only need to review the changes to aron (Generator.cpp)

Depends on MR armarx-core!246 (merged)

Includes MR !285 (closed) and !320 (closed)

source/RobotAPI/libraries/aron/codegeneration/codegenerator/codewriter/cpp/generator/Generator.cpp

@@ -188,6 +188,7 @@ namespace armarx::aron::codegenerator::cpp
         CppMethodPtr m = CppMethodPtr(new CppMethod("virtual void resetSoft() override", doc.str()));
         CppBlockPtr b = this->getResetSoftBlock("");
         m->setBlock(b);
+        m->setEnforceBlockGeneration(true);
         return m;
     }
 
@@ -200,6 +201,7 @@ namespace armarx::aron::codegenerator::cpp
         CppMethodPtr m = CppMethodPtr(new CppMethod("virtual void resetHard() override", doc.str()));
         CppBlockPtr b = this->getResetHardBlock("");
         m->setBlock(b);
+        m->setEnforceBlockGeneration(true);
         return m;
     }
 
@@ -216,6 +218,7 @@ namespace armarx::aron::codegenerator::cpp
         std::string dummy;
         b->appendBlock(this->getWriteTypeBlock("", "", Path(), dummy));
         m->setBlock(b);
+        m->setEnforceBlockGeneration(true);
         return m;
     }
 
@@ -520,5 +523,3 @@ namespace armarx::aron::codegenerator::cpp
         return block_if_data;
     }
 }
-
-