PBJS Core: Add allowSendAllBidsTargetingKeys to targetingControls

[ghost]

Type of change

Feature

Description of change

Allows a publisher to limit the number 'sendAllBids' keys sent to the adServer. For example hb_bidder_rubicon is one of the more redudant keys we would like to stop sending but we still need hb_bidder key sent. This would similar to the targetingControl option, allowTargetingKeys.

Sample Config:
Example will not send hb_bidder_rubicon

    targetingControls: {
        allowTargetingKeys: ['BIDDER', 'AD_ID', 'PRICE_BUCKET'],
        allowSendAllBidsTargetingKeys: ['PRICE_BUCKET', 'AD_ID']
    }

• Docs PR -- Feature: allowSendAllTargetingKeys prebid.github.io#2985