Adicionar pessoas essenciais em incidentes com alta severidade

[GLOFonseca]

Feature Description

When an incident with the severity of 1 or 0 occurs, we need to add some directors in the channel manually.
We could do this automatically through Hellper.

Problem

Add manually some directors in some incidents.

Expected behaviour

Every people that should always be in the incident, whatever is the type of incident, could be included in the channel automatically.

Alternatives

Alternatives are welcome!