Support all resampling filters when resizing I;16* images #8422
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radarhere force-pushed the resize_i16 branch from a2877ff to d33270a Compare 
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Resolves #8333 by allowing
resize()on I;16, I;16L, I;16B and I;16N images to work with resampling filters other thanNEAREST.Given the original intention to use
BICUBICas the default resampling for all modes, I've also changed the default resampling for I;16* modes toBICUBIChere. This will only leave the deprecated modes BGR;15, BGR;16 and BGR;24 usingNEARESTby default.