Sonobi Adapter creativeId support (prebid#2584)

* return null from buildRequests if there is no keymakers

* fixed issue where isEmpty was being called from old utils var. Changed test port expectations to the original 9876 port

* Adding creativeId support

* removed duplicate check for empty keymaker data

modules/sonobiBidAdapter.js

@@ -114,7 +114,7 @@ export const spec = {
  height: Number(height),
  ad: createCreative(bidResponse.sbi_dc, bid.sbi_aid),
  ttl: 500,
- creativeId: bid.sbi_aid,
+ creativeId: bid.sbi_crid || bid.sbi_aid,
  netRevenue: true,
  currency: 'USD'
  };

test/spec/modules/sonobiBidAdapter_spec.js

@@ -237,6 +237,7 @@ describe('SonobiBidAdapter', () => {
  '/7780971/sparks_prebid_LB|30b31c1838de1f': {
  'sbi_size': '300x600',
  'sbi_apoc': 'remnant',
+ 'sbi_crid': '1234abcd',
  'sbi_aid': '30292e432662bd5f86d90774b944b039',
  'sbi_mouse': 1.07,
  },
@@ -268,7 +269,7 @@ describe('SonobiBidAdapter', () => {
  'height': 600,
  'ad': '<script type="text/javascript" src="https://mco-1-apex.go.sonobi.com/sbi.js?aid=30292e432662bd5f86d90774b944b039&as=null&ref=localhost:9876"></script>',
  'ttl': 500,
- 'creativeId': '30292e432662bd5f86d90774b944b039',
+ 'creativeId': '1234abcd',
  'netRevenue': true,
  'currency': 'USD'
  },