Fix GFI for requests with CRS with inverted axis order #1020
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GFI does not return the correct result if the axis order of the CRS is inverted.
For example, this is the case if WMS 1.3 is requested with CRS EPSG:4326.
Currently, when an axis aware CRS with inverted axis order is used (e.g. WMS 1.3 with CRS EPSG:4326), the axis order is inverted again without recalculating I, J, width and height.
Thus, this pull requests enables recalculation of I, J, width and height when using axis aware CRS with inverted axis order in GFI requests.