Migrate resource allocation map from agent to manager

[fregataa]

Motivation  

• InsufficientResource errors occur in the CREATING phase of session creation, while creating containers in agents. This error may result from:
  • Resource state mismatches between managers and agents (BA-586)
  • Resource fragmentation in agent.
    Since managers don't have visibility into agents' resource allocation maps, they can only schedule sessions by comparing the required resource amount with the total sum of remaining resources in agents. This leads to scheduling sessions to inappropriate agents that have fragmented resources

Objective  

• Let scheduler consider allocation map and avoid scheduling sessions to resource fragmented agents

�Expected Sub Issue

• Migrate resource allocation map from agent to manager
• Update schedulers of manager to consider the allocation map
• Update all accelerator plugins