LazReport, crosstab component and demo + refactoring and fixes, from Alexey Lagunov

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46125 4005530d-fff6-0310-9dd1-cebe43e6787f
LazReport, missing changes from previous patch (images directory)

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46126 4005530d-fff6-0310-9dd1-cebe43e6787f