Updating sp-info to make it generic

[Naman-1234]

Currently, sp-info takes id to be blobber id(Please refer to schema for more details on this one).
This is causing issue in some of the issues desiring id of validator.

• Collect-rewards for Validators system_test#305.
• Test collect_reward 0chain endpoints. system_test#191.

We need to replace it with the generic field ID. For instance replacing ID with provider_id and provider_type flags.

type StakePoolInfo struct {
	ID           string                      `json:"pool_id"`      // pool ID
	Balance      int64                       `json:"balance"`      // total balance
	Unstake      int64                       `json:"unstake"`      // total unstake amount
	Free         int64                       `json:"free"`         // free staked space
	Capacity     int64                       `json:"capacity"`     // blobber bid
	WritePrice   int64                       `json:"write_price"`  // its write price
	OffersTotal  int64                       `json:"offers_total"` //
	UnstakeTotal int64                       `json:"unstake_total"`
	Delegate     []StakePoolDelegatePoolInfo `json:"delegate"`
	Penalty      int64                       `json:"penalty"` // total for all
	Rewards      int64                       `json:"rewards"`
	Settings     StakePoolSettings           `json:"settings"`
}

type StakePoolDelegatePoolInfo struct {
	ID         string `json:"id"`          // blobber ID
	Balance    int64  `json:"balance"`     // current balance
	DelegateID string `json:"delegate_id"` // wallet
	Rewards    int64  `json:"rewards"`     // current
	UnStake    bool   `json:"unstake"`     // want to unstake

	TotalReward  int64  `json:"total_reward"`
	TotalPenalty int64  `json:"total_penalty"`
	Status       string `json:"status"`
	RoundCreated int64  `json:"round_created"`
}