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This reverts commit a1aa949e.

Simplify the code and avoid some allocations to improve performance.

I haven't checked the definition of RealType, but merging the output and
value variables might arguably affect precision. The unit tests still
seem to pass, however.

Tested by 2x upsampling a 10-band 5490x5490 float32 image on an Intel
Celeron J1900.

There is further room for improvement by eliding the remaining memory
allocations. A container like the small_vector from Boost might be
useful here, but we can't use that since it's not available in older
Boost versions.

before:
661.44s user 9.31s system 304% cpu 3:40.52 total
594.06s user 9.43s system 303% cpu 3:19.00 total
591.15s user 9.43s system 301% cpu 3:19.28 total

after:
443.42s user 10.48s system 294% cpu 2:34.00 total
443.11s user 9.87s system 309% cpu 2:26.27 total
448.50s user 10.50s system 311% cpu 2:27.52 total

Simplify the code and avoid some allocations to improve performance.

I haven't checked the definition of RealType, but merging the output and
value variables might arguably affect precision. The unit tests still
seem to pass, however.

Tested by 2x upsampling a 10-band 5490x5490 float32 image on an Intel
Celeron J1900.

There is further room for improvement by eliding the remaining memory
allocations. A container like the small_vector from Boost might be
useful here, but we can't use that since it's not available in older
Boost versions.

before:
661.44s user 9.31s system 304% cpu 3:40.52 total
594.06s user 9.43s system 303% cpu 3:19.00 total
591.15s user 9.43s system 301% cpu 3:19.28 total

after:
443.42s user 10.48s system 294% cpu 2:34.00 total
443.11s user 9.87s system 309% cpu 2:26.27 total
448.50s user 10.50s system 311% cpu 2:27.52 total

ENH: Moved mvdUseInDebug() and mvdUseInRelease() macros into otbConfigure.h.in as otbUseInDebug() and otbUseInRelease().

TEST: Gdal/Openjpeg driver limits overview report to 128x128 size, and interpolate smaller overviews. Avoid comparing with baseline from openjpeg in this case

TEST: Gdal/Openjpeg driver limits overview report to 128x128 size, and interpolate smaller overviews. Avoid comparing with baseline from openjpeg in this case