Restore adman bidadapter

[SmartyAdman]

Type of change

• Refactoring (no functional changes, no api changes)

Description of change

General changes to be compliant with latest Prebid

• test parameters for validating bids

{
                    code: 'placementId_0',
                    mediaTypes: {
                        video: {
                            sizes: [[300, 250]],
                        }
                    },
                    bids: [
                        {
                            bidder: 'adman',
                            params: {
                                placementId: 0,
                                traffic: 'video'
                            }
                        }
                    ]
                },
                {
                    code: 'placementId_0',
                    mediaTypes: {
                        native: {}
                    },
                    bids: [
                        {
                            bidder: 'adman',
                            params: {
                                placementId: 0,
                                traffic: 'native'
                            }
                        }
                    ]
                },
                {
                    code: 'placementId_0',
                    mediaTypes: {
                        banner: {
                            sizes: [[300, 250]],
                        }
                    },
                    bids: [
                        {
                            bidder: 'adman',
                            params: {
                                placementId: 0,
                                traffic: 'banner',
                            }
                        }
                    ]
                }