ENH: improve cmake/ParaView config handling

- improve handling of changes in ParaView/VTK or cmake parameters (#1693)

  * adjust internals to support recording of an unlimited number of
    configuration parameters and use file `cmp` instead of trying
    to check strings ourselves.

ENH: new wmake/scripts/wmake.cmake-args handler

- additional handling of -prefix=... as CMAKE_INSTALL_PREFIX export.

- in some contexts, can use instead of AllwmakeParseArguments

doc/Config.md

@@ -78,7 +78,6 @@ example,
 
 ParaView_VERSION=5.6.0
 ParaView_QT=qt-system
-cmake_version=cmake-system
 
 # END OF (NORMAL) USER EDITABLE PART
 #------------------------------------------------------------------------------