Base function: Possibility to give visits a type like "standard", "deleted", "bot" etc.

[hpvd]

Possibility to give visits a "type" like:

• "standard"
• "deleted"
• "bot"
  -...

With this one can keep every visit always in database but can
easily decide (filter) for each type of visit being

• visible
• considered within statistic

This should be the better, more general way to achieve all advantages from
#9184

This is the basic for

1. Delete function and being able to have an "undo function" (Let me delete Visitors from Visitor Log (and undo it) #3385 and Vistor-Log-Tool: 1. step: general setup + actions of type delete #9204)
   With this the action "deleting" is only a change of type from standard to deleted
   And undo is simply changing type from "deleted" back to "standard".
2. Simplifying bot tracking Simplify bots tracking, bot ignoring and switching between both #9067
   every bot got the "type" "bot"

[hpvd]

to making undo easily possible one could e.g store a second type for each visit "was before type"
so one can easily revert any change by looking into this visit field

[hpvd]

from technical pov this could be somehow related to #8161

[mattab]

Thanks for suggestion @hpvd - I think it duplicates #9184 - feel free to post comment there if needed