Add beachfront bidder params to set outstream player settings

[jsalis]

Type of change

• Feature
• Does this change affect user-facing APIs or examples documented on http://prebid.org?

Description of change

Adds bidder params to pass player settings for the outstream renderer.

{
  bidder: 'beachfront',
  params: {
    bidfloor: 0.01,
    appId: '11bc5dd5-7421-4dd8-c926-40fa653bec76'
    player: {
      collapseOnComplete: false
    }
  }
}

PR for docs:
prebid/prebid.github.io#1334

[sumit116]

Hi @jsalis ,
Thanks for submitting your adaptor. I tested your adaptor on hello-world page and found functionality working fine. Just a small change that can you add the new bidder params (that include player) to your .md file as well.

Thanks!

[jsalis]

I added an example to the docs.

[sumit116]

Tested the adaptor on hello_world page and all unit tests have passed. Test coverage of the adaptor is above 80%. The changes are working well against all parameters listed in https://github.com/prebid/Prebid.js/blob/master/PR_REVIEW.md, hence approving the PR.