PulsePoint Bid Adapter: deals support and refactoring to use ortbConv…

…erter (prebid#10177)

* ET-1691: Pulsepoint Analytics adapter for Prebid. (#1)

* ET-1691: Adding pulsepoint analytics and tests for pulsepoint adapter

* ET-1691: Adding pulsepoint analytics and tests for pulsepoint adapter

* ET-1691: cleanup

* ET-1691: minor

* ET-1691: revert package.json change

* Adding bidRequest to bidFactory.createBid method as per prebid#509

* ET-1765: Adding support for additional params in PulsePoint adapter (#2)

* ET-1850: Fixing prebid#866

* Minor fix

* Adding mandatory parameters to Bid

* Switching to ortbConverter

* updating docs

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Co-authored-by: Eugene Rachitskiy <eugene@rachitskiy.com>