LazReport: Patch from Alexey Lagunov, issue 26855

 1. Fix AV on TlrButtonPanel
 2. Implement highlight find text in preview report window
 3. Fix loading TlrCrossView from stream
 4. Fixed speed save changes to the data in the report (after double click on preview report window)



git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46761 4005530d-fff6-0310-9dd1-cebe43e6787f