Added GDAL based raster reader

Co-authored by Jacob Becker <jacob.becker@kitware.com>. This reader support
a variety of rster formats using GDAL library

Change-Id: I9bc4dac89e271f307de70e86f0b50604d6229926
Fixed various minor issues

Change-Id: Iee65eba1254d6b7c6ad16072641fd405bc34a874
Added baseline and data for the testing

Change-Id: I67d54fb02b381f5c8b5a1d5dfdc245f741395b0e
Addressed minor code clean up issues

Change-Id: I620be35bdc580d7c59eb479f5070ea6ea45be0e8