Add a new configuration setting

• Add the option to the relevant ConfigPanel class
• E.g. Camera Gain NumericUpDown in AndorCameraConfigPanel
• Add a matching field to relevant LuiObjectParameters class
• E.g. InitialGain int property in CameraParameters
• Update Parameters' Copy and ConstructorArray, also Equals and GetHashCode if needed
• Update ConfigPanels' CopyTo and CopyFrom methods to include the new property
• Update relevant LuiObject's constructor to match modified ConstructorArray output