VM scheduler

[WoodenMaiden]

The scheduler shall be the brick that handles VM lifecycle.

• It shall be connected to a Redis Database where VM statuses are stored
• It shall create Virtual machines when the user wants to run a function but when there's no VM available (AKA a cold start)
• It shall destroy a virtual machine when it has not been used in a long time
• It shall check the status of VMs and update it in Redis
• When it creates a VM when the gateway asks for it, the scheduler returns the IP address and the port