COMP: modify gdal search and gdal linking process

CMakeLists.txt

Code/IO/CMakeLists.txt

Examples/BasicFilters/CMakeLists.txt

Examples/ChangeDetection/CMakeLists.txt

Examples/Classification/CMakeLists.txt

Examples/DataRepresentation/Image/CMakeLists.txt

Examples/DisparityMap/CMakeLists.txt

Examples/FeatureExtraction/CMakeLists.txt

Examples/Filtering/CMakeLists.txt

Examples/Fusion/CMakeLists.txt

Examples/Iterators/CMakeLists.txt

Examples/Learning/CMakeLists.txt

Examples/Markov/CMakeLists.txt

Examples/MultiScale/CMakeLists.txt

Examples/Patented/CMakeLists.txt

Examples/Radiometry/CMakeLists.txt

Examples/Registration/CMakeLists.txt

Examples/SARPolarimetry/CMakeLists.txt

Examples/Segmentation/CMakeLists.txt

Examples/Tutorials/CMakeLists.txt