Simplify property handling; Fix unit tests

include/openspace/properties/property.h

@@ -199,10 +199,8 @@ public:
      * no-op.
      *
      * \param state The Lua state from which the value will be decoded
-     * \return `true` if the decoding and setting of the value succeeded, `false`
-     *         otherwise
      */
-    virtual bool setLuaValue(lua_State* state);
+    virtual void setLuaValue(lua_State* state);
 
     /**
      * Returns the Lua type that will be put onto the stack in the Property::getLua method

include/openspace/properties/templateproperty.h

@@ -115,7 +115,7 @@ public:
      * \param state The Lua state from which the value will be decoded
      * \return `true` if the decoding succeeded; `false` otherwise
      */
-    virtual bool setLuaValue(lua_State* state) override;
+    virtual void setLuaValue(lua_State* state) override;
 
     /// \see Property::typeLua
     virtual int typeLua() const override = 0;

include/openspace/properties/templateproperty.inl

@@ -85,15 +85,9 @@ bool TemplateProperty<T>::getLuaValue(lua_State* state) const {
 }
 
 template <typename T>
-bool TemplateProperty<T>::setLuaValue(lua_State* state) {
-    try {
-        T thisValue = fromLuaConversion(state);
-        set(std::any(thisValue));
-        return true;
-    }
-    catch (const ghoul::lua::LuaFormatException&) {
-        return false;
-    }
+void TemplateProperty<T>::setLuaValue(lua_State* state) {
+    T thisValue = fromLuaConversion(state);
+    set(std::any(thisValue));
 }
 
 template <typename T>

include/openspace/properties/triggerproperty.h

@@ -57,7 +57,7 @@ public:
      * \param state The unused Lua state
      * \return Returns always `true`
      */
-    bool setLuaValue(lua_State* state) override;
+    void setLuaValue(lua_State* state) override;
 
     /**
      * Silently ignores any value that is passed into this function and will trigger the