Merge topic 'cmStringAlgorithms_move_functions'

959b97a27f Tests: testStringAlgorithms: Add cmTrimWhitespace, cmEscapeQuotes, cmTokenize
7fbcc16dcd cmStringAlgorithms: cmIsSpace, cmTrimWhitespace, cmEscapeQuotes, cmTokenize

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3647