Problem for TSX metadata in V8 (parseGeom)

DEM projection can raise a seg fault for TSX inputs. A Seg Fault is raised if metadata comes from a geom file (OTB = 7.4)

Hera a patch to solve this issue in 7.4. FYI, I tried to remain compliant with OTB < 7.4 (different keys in geom) but I did not check it.

OS centos 7.9 (HAL), OTB release-8.0