[RFE] Add option to not deploy a detector

[haedri]

Is your feature request related to a problem? Please describe.
It is easy at the moment to disable a detector, but not to avoid deploying it.
So a lot of detectors are deployed with disabled alert rules.
Furthermore Splunk currently has issues with disabled alert rules that still randomly trigger, so not deploying the detector altogether would be a good solution

Describe the solution you'd like
Make it easy to disable deployment of a detector, just a variable to set

Describe alternatives you've considered
Something could be done with the condition parameter (that would set count to 0) but it's not well documented, and not easy