Add verify_deals_for_activation method in market state

[sudo-shashank]

Summary of changes Changes introduced in this pull request:

• required for Filecoin.StateMinerInitialPledgeCollateral and Filecoin.StateMinerPreCommitDepositForPower

ref go impl

// Validates a collection of deal dealProposals for activation, and returns their combined weight,
// split into regular deal weight and verified deal weight.
func ValidateDealsForActivation(
    st *State, store adt.Store, dealIDs []abi.DealID, minerAddr addr.Address, sectorExpiry, currEpoch abi.ChainEpoch,
) (big.Int, big.Int, uint64, error) {
    proposals, err := AsDealProposalArray(store, st.Proposals)
    if err != nil {
        return big.Int{}, big.Int{}, 0, xerrors.Errorf("failed to load dealProposals: %w", err)
    }

    return validateAndComputeDealWeight(proposals, dealIDs, minerAddr, sectorExpiry, currEpoch)
}

Reference issue to close (if applicable)

Closes

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