This breaks unit tests in svtools.

This reverts commit 915fe513.

share test between all services which share the implementation in
ScCellRangesBase

create one test suite per implementation class:
move xcellrangesquery into ScCellRangesBase

tests are still disabled but problem is related to
7da57d17

After successful last(), isLast() should return true!
Thus, when moving to last record, keep that fact in mind (update m_bEOF) so that isLast returns right result.
Also update m_bEOF on other moves.

Update m_nRowPos on next(), for the same reasons, mutatis mutandi.