Multi-node TODO list

[spirali]

• [x] Basic functionality
• [x] Multi-node task parking
• [ ] Switch for requesting only workers from the same allocation
• [ ] Dynamic requests of number-of-nodes-per-allocation from auto alloc
• [ ] Priorities
• [ ] Node resource requests for multi-node tasks
• [ ] Time requests for multi-node tasks
• [ ] Debug MPI crash in multi-node tasks on Karolina