cmStringAlgorithms: Add cmExpandList functions
This adds the following functions to cmStringAlgorithms:
-
cmExpandList
: Moved fromcmSystemTools::ExpandListArgument
-
cmExpandedList
: Moved fromcmSystemTools::ExpandedListArgument
-
cmExpandLists
: Moved fromcmSystemTools::ExpandLists
-
cmExpandedLists
: Moved fromcmSystemTools::ExpandedLists