Add "bot" (flags) detection

[DanielSiepmann]

Right now the extension is not aware of bots. It would make sense to add a flag to all records that define whether the tracking was triggered by a bot.

Those should then be allowed to be excluded from widgets. That way widgets can be created for humans as well as bots. This way one can check which pages are called by humans and by bots, as well as which operating systems are used by bots and humans.

The existing rule should remove all the bot logic. Instead a new option should be introduced which contains the logic.

Integrated into the existing update logic, existing records can be marked as bots afterwards. No existing data should be lost.

Open Todos:

• [ ] Current inconsistency: I sometimes use "flag" sometimes "tag, this should be streamlined.
• [ ] Fix typo Unkown