lcl: rename image name as it is used in LCL

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42964 4005530d-fff6-0310-9dd1-cebe43e6787f
lcl: move calculator images from Lazarus to FPC resources

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42965 4005530d-fff6-0310-9dd1-cebe43e6787f