Add routine support

[Zabuzard]

Overview

Implements and closes #235. Adds an interface Routine implements Feature, which allows classes to be executed on a pre-defined fixed schedule by the bots core system (i.e. every 5 minutes).

Also migrated the two existing routines:

• TemporaryModerationRoutine (for temp bans, mutes, ...)
• ModAuditLogRoutine

Example

A quick example routine would be

class Foo implements Routine {
  @Override
  public void run(JDA jda) {
    System.out.println("hello");
  }

  @Override
  public Schedule createSchedule() {
    return new Routine.Schedule(Routine.ScheduleMode.FIXED_RATE, 0, 5, TimeUnit.SECONDS);
  }
}

with an addition in Features.java:

features.add(new Foo());

The system will now basically hand over the routine to a ScheduledExecutorService and execute its run(JDA) method on the schedule defined by its createSchedule().

Remarks

This is based on (and hence also blocked by) #345 .

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

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0.0% Duplication

[Zabuzard]

No changes since a week, merging