cloudcompare: disable qRANSAC_SD plugin to fix build

qRANSAC_SD plugin compilation is broken on non-x86 architectures.
Additionally, its license is not compatible with GPL (it is "for
research purposes only") so it is disabled for all architectures
instead of just non-x86.

pkgs/applications/graphics/cloudcompare/default.nix

···
     "-DPLUGIN_STANDARD_QM3C2=ON"
     "-DPLUGIN_STANDARD_QMPLANE=ON"
     "-DPLUGIN_STANDARD_QPOISSON_RECON=ON"
-    "-DPLUGIN_STANDARD_QRANSAC_SD=ON"
+    "-DPLUGIN_STANDARD_QRANSAC_SD=OFF" # not compatible with GPL, broken on non-x86
     "-DPLUGIN_STANDARD_QSRA=ON"
     "-DPLUGIN_STANDARD_QCLOUDLAYERS=ON"
   ];