erp5_officejs_drone_simulator: fix timeout

• Fix timeout feature and Date class was broken by 2f7689d1 .
• Add timeout feature and Date class tests.
• Regroup command constraints under _callSetTargetCommand function.
• Implement parachute landing (rather than progressively descending)
• Add a loop interval parameter (constraint on how often telemetry is published and onUpdate loop is executed)
• Allow drones initial speed to be zero
• Limit conflicts with variable names when user code is evaluated