CONFIG: prefer use of ParaView_MESA_DIR in runTimePostProcessing

- when using VTK from ParaView sources it can better to tag them as
  such, but simultaneously not mask the ParaView with hardware
  rendering.

  The additional ParaView_MESA_DIR variable allows this.
  The balance of library and path setup is unaffected by this.

STYLE: cleanup of Allwclean, Allwmake

CONFIG: remove local version of cmakeVersionedInstall
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