Rubicon Bid Adapter: add size 1x2 (#9644)

* Added support for the Price Floors Module

* Use the ad server's currency when getting prices from the floors module

* Default to USD if the ad server's currency can't be retrieved

* Set the default currency at the right place

* Added tests and made a minor change in how device width and height are calculated

* Only include flrCur when ad requests contain floors

* Added 1x2 (524) size to Rubicon adapter

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Co-authored-by: msmeza <moises@livewrapped.com>

modules/rubiconBidAdapter.js

@@ -123,6 +123,7 @@ var sizeMap = {
   278: '320x500',
   282: '320x400',
   288: '640x380',
+  524: '1x2',
   548: '500x1000',
   550: '980x480',
   552: '300x200',