MarbleMapTest: split test cases for valid ranges of Spherical and Equirectangular projections
MarbleMapTest: split test cases for valid ranges of Spherical and Equirectangular projections

* also extend latitude-range for spherical case to [-180, 180] degrees

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