Get the new animation framework properly working

Store start and end frames as v2f

Also move bone animations to their own function instead of object properties

src/serverobject.h

@@ -152,6 +152,10 @@ public:
 
 	virtual void setArmorGroups(const ItemGroupList &armor_groups)
 	{}
+	virtual void setAnimations(v2f frames, float frame_speed, float frame_blend)
+	{}
+	virtual void setBonePosRot(std::string bone, v3f position, v3f rotation)
+	{}
 	virtual ObjectProperties* accessObjectProperties()
 	{ return NULL; }
 	virtual void notifyObjectPropertiesModified()