WIP: Resolve "Complete state vector new data structure?"

Closes #287 (closed)

Continues in !358 (closed)

include/core/capture/capture_base.h

@@ -83,7 +83,7 @@ class CaptureBase : public NodeBase, public HasStateBlocks, public std::enable_s
 
 
         // State blocks
-        const std::string& getStructure() const;
+        const StateStructure& getStructure() const;
         StateBlockPtr getStateBlock(const std::string& _key) const;
         StateBlockPtr getStateBlock(const char _key) const { return getStateBlock(std::string(1, _key)); }
         StateBlockPtr getSensorP() const;