Accessibilty module coordinate readout in the coordinate sytem used for the site

Currently, if you have the accessibility module turned on, it provides a coordinate readout in web mercator. We don't use web mercator for any of our geocortex sites. We use a coordinate system for our location (GDA MGA 94 Zone 56). This means that everytime a user pans the map, a 'project' call is made for all the data on the map. The only way to stop this reproject happening is to turn off the accessibility module which we can't do because its being used.

We should be able set the coordinate readout for the accessibility module to the coordinate system relevant to that that site. The different projection for coordinate readouts through the accessibility module only adds to user confusion. This will only get worse when Australia swaps to GDA 2020 and then the user will get wrong coordinates because of the null transformation.