testOOP
PURPOSE 
Create higher level matlab objects.
SYNOPSIS 
function [ncObj varObj] = testOOP(uri,var,type)
DESCRIPTION 
CROSS-REFERENCE INFORMATION 
This function calls:
- getGeoGridVar mDataset/getGeoGridVar - Get variable into a GeoGrid if it has a Georeferencing coordinate system.
- getVar mDataset/getVar - Retrieves a matlab variable object.
- mDataset mDataset class constructor - opens a netcdf file and creates a grid or netcdf mDataset object.
- end mGeoGridVar/end -- Evaluate "end" as an index. (overloaded method)
- end mVar/end -- Evaluate "end" as an index. (overloaded method)