For format like HH:MM:SS MM/DD
second MM is detected as minute: see tdf#95339

New rules:
- first M following each H is minute
- first M following first S is minute

Detection Month/minute now fully compatible with Excel even with unwanted detection:
SS:MM:HH DD/MM/YY
second MM is minute even if user would expect month

Change-Id: Ia789fbc2dbd6d2dcbe9b9c34d3f288674966dd10
Reviewed-on: https://gerrit.libreoffice.org/27560Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>