AutoQA: Numbers check

There should be a new category "Numbers" / "Zahlen" on the second level in the GUI (Same level as "Internal tags" or "terminology").

On the third level there should be a number of new checks. What checks and how many will be determined by what we find out in the beo-lib "snc".

It should be labeled in the GUI:

EN: Numbers

DE: Zahlen

With a tooltip:

EN: Checks numbers and date formats

DE: Prüft Zahlen und Datumsformate

The check should implement the logic, that the beo-lib "snc" has implemented in check_zahlen.php and its dependent files and folder:

• check_zahlen_checkProps.SNIP.php
• check_zahlen_helpers.php
• check_zahlen_subChecks.php
• zahlen_subsubchecks

to keep in mind:

• stuff that is inside client-specific "if" clauses we do not use within the current scope
• Everything that is inside sdlxliff-specifc "if" we should use, but not, what is inside other toolspecific "if", like "transit"
• the snc knows for a number of checks, where in the segment the error is. This should be marked in translate5 with MQM-tags (ask Axel)