Add HPMD Network bid adapter

[afominov]

Type of change

• Bugfix
• Feature
• New bidder adapter
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Does this change affect user-facing APIs or examples documented on http://prebid.org?
• Other

Description of change

• test parameters for validating bids

{
  bidder: 'hpmdnetwork',
  params: {
    placementId: '2362'
  }
}

Be sure to test the integration with your adserver using the Hello World sample page.

• contact email of the adapter’s maintainer: a.fominov@hpmdnetwork.ru
• official adapter submission

For any changes that affect user-facing APIs or example code documented on http://prebid.org, please provide:

• Add HPMD Network bid adapter dev-docs prebid.github.io#1270

Other information

To get bids using placement id, specified above, you have to apply mobile user-agent, desktop browser in mobile device emulation mode or real mobile device, because our demand is mobile only.

[mike-chowla]

LGTM