SmileWanted Adapter: Adding the "positionType" parameter

[MaxSmileWanted]

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

• Adding the "positionType" parameter

{
  bidder: 'smilewanted',
  params: {
    zoneId: 1,
    positionType: 'article_atf'
  },
}

Description of change

Testing informations : https://docs.prebid.org/dev-docs/bidders/smilewanted