MasterPricer: Add flight opts BD & UBD (#321)

‘BD’ – will restrict the transaction to only bundled fares (i.e. will exclude unbundled fares)
‘UBD’ – will restrict the transaction to only unbundled fares (i.e. will return only fares with FTC EOU and ERU)

src/Amadeus/Client/RequestOptions/MpBaseOptions.php

@@ -52,6 +52,8 @@ class MpBaseOptions extends Base
     const FLIGHTOPT_IN_FLIGHT_SERVICES = 'IFS';
     const FLIGHTOPT_ONLY_PTC = 'PTC';
     const FLIGHTOPT_MINIRULES = 'MNR';
+    const FLIGHTOPT_ONLY_BUNDLED_FARES = 'BD';
+    const FLIGHTOPT_ONLY_UNBUNDLED_FARES = 'UBD';
 
     const CORPORATE_QUALIFIER_AMADEUS_NEGO = 'RC';
     const CORPORATE_QUALIFIER_UNIFARE = 'RW';