lazutils: paswstring: one string less in Wide2AnsiMove and Ansi2WideMove

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47086 4005530d-fff6-0310-9dd1-cebe43e6787f
lazutils: paswstring: one string less in LowerWideString

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47087 4005530d-fff6-0310-9dd1-cebe43e6787f
lazutils: paswstring: one string less in UpperWideString

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47088 4005530d-fff6-0310-9dd1-cebe43e6787f
lazutils: paswstring: EnsureAnsiLen grow faster

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47089 4005530d-fff6-0310-9dd1-cebe43e6787f