ProjectionTest: add Equirectangular tests
ProjectionTest: add Equirectangular tests

adraghici/marble,tucnak/marble,tzapzoor/marble,tucnak/marble,David-Gil/marble-dev,utkuaydin/marble,tucnak/marble,tucnak/marble,David-Gil/marble-dev,tzapzoor/marble,probonopd/marble,tzapzoor/marble,utkuaydin/marble,utkuaydin/marble,probonopd/marble,rku/marble,quannt24/marble,tzapzoor/marble,rku/marble,tzapzoor/marble,rku/marble,rku/marble,oberluz/marble,tzapzoor/marble,probonopd/marble,Earthwings/marble,Earthwings/marble,quannt24/marble,rku/marble,tucnak/marble,quannt24/marble,quannt24/marble,oberluz/marble,Earthwings/marble,oberluz/marble,probonopd/marble,AndreiDuma/marble,Earthwings/marble,quannt24/marble,quannt24/marble,adraghici/marble,oberluz/marble,tucnak/marble,probonopd/marble,AndreiDuma/marble,AndreiDuma/marble,tzapzoor/marble,David-Gil/marble-dev,Earthwings/marble,David-Gil/marble-dev,tzapzoor/marble,rku/marble,oberluz/marble,adraghici/marble,Earthwings/marble,utkuaydin/marble,adraghici/marble,AndreiDuma/marble,utkuaydin/marble,utkuaydin/marble,AndreiDuma/marble,probonopd/marble,David-Gil/marble-dev,quannt24/marble,probonopd/marble,tucnak/marble,oberluz/marble,adraghici/marble,adraghici/marble,David-Gil/marble-dev,AndreiDuma/marble