Resolves: #i124467# add check for image data offset...

against stream length, some further checks

(cherry picked from commit 9ceda6fa56d31af717cc2c0c7572cf53cdc47af1)

Conflicts:
	vcl/source/gdi/dibtools.cxx

Change-Id: I8993b91ef4fa951e7bae702b0d056996015245ba