TEST: new baseline for PNG2ENVI test

Baseline/OTB/Images/ioImageFileReaderPNG2ENVI.hdr

+ENVI
+description = {
+C:/dashboard/orfeotoolbox/build/Testing/Temporary/ioImageFileReaderPNG2ENVI}
+samples = 256
+lines   = 256
+bands   = 1
+header offset = 0
+file type = ENVI Standard
+data type = 1
+interleave = bsq
+byte order = 0
+band names = {
+Band 1}