[feat] change the default value of "Range Label format"

Set the default Range Label Format to "%g" This option is accessible from the user interface : "Color Map Editor" -> "Edit color legend properties" (next to the advanced button) -> "Range Label Format" (in the adavanced properties)

Users asks us to set it to %g by default

We need to create a behavior because the proxy is created only when the user click on the "Toogle Color Legend Visibility" button

If every LidarView based application wants this, we can directly modify the xml default value : https://gitlab.kitware.com/bjacquet/paraview/-/blob/5.6.1CustomForLidarView/ParaViewCore/ServerManager/SMApplication/Resources/utilities.xml#L1112) or Remoting/Views/Resources/utilities_remotingviews.xml:1512 in PV5.9