[Feature]: Include idle staking parties in the scope for eligible entities rewards

[ze97286]

The universe of parties (which get evaluated) for eligible entities reward should be as follows:

• if no staking and no notional requirement is defined - all parties in vega
• if no staking requirement is defined the universe of evaluated parties includes parties which were active in any relevant market in scope
• if no notional requirement is defined than all staking parties get evaluated