[FEATURE] Database cleanup => hto integrated entries

[akasolace]

Database cleanup tool should offer:

• an option to delete "Own unofficial game" (e.g. ladder, tournament...)
• a line incorrect entries (remove all selected by default)

The last option would check if game in matchKurzInfo really exists (based on matchID, fix entries)and delete non existing game (this would allow to treat issue like #1038)

[wsbrenk]

@tychobrailleur same as #1587?

[tychobrailleur]

Similar but I haven't considered the second point, so incomplete. The first is covered by the implementation of #1587