Add account/ host GDPR enabled flags & account per request type GDPR …

…enabled flags (prebid#1564)

* Add account level request type specific and general GDPR enabled flags

* Clean up test TestAccountLevelGDPREnabled

* Add host-level GDPR enabled flag

* Move account GDPR enable check as receiver method on accountGDPR

* Remove mapstructure annotations on account structs

* Minor test updates

* Re-add mapstructure annotations on account structs

* Change RequestType to IntegrationType and struct annotation formatting

* Update comment

* Update account IntegrationType comments

* Remove extra space in config/accounts.go via gofmt

Add AMX RTB adapter (prebid#1549)

Add Accounts to http cache events (prebid#1553)

Add metrics for account cache (prebid#1543)

Correct GetCpmStringValue's second return value (prebid#1520)

Rework pubstack module tests to remove race conditions (prebid#1522)

* Rework pubstack module tests to remove race conditions

* PR feedback

* Remove event count and add helper methods to assert events received on channel

Smarty ads adapter (prebid#1500)

Co-authored-by: Kushneryk Pavlo <[email protected]>
Co-authored-by: user <[email protected]>

Refactor postgres event producer so it will run either the full or de… (

prebid#1485)

* Refactor postgres event producer so it will run either the full or delta query periodically

* Minor cleanup, follow golang conventions, declare const slice, add test cases

* Remove comments

Implement returnCreative (prebid#1493)

* Working solution

* clean-up

* Test copy/paste error

Co-authored-by: Gus Carreon <[email protected]>
Co-authored-by: Gus Carreon <[email protected]>

Pass Through First Party Context Data (prebid#1479)