ADD: test with Semantic segmentation model (Model4, 64x64->32x32 FCN)

Docker: OTB and TF latest releases + new ZIP_TF_BIN build argument

DOC: add new section for building nets

Update DOCKERUSE.md

Update docker run syntax depending of Docker version

Docker use

Docker : small changes (NUMPY_SPEC) + comments about CPU opt instructions

ENH: Backward compatibility for old codes using OTBTF (e.g. Deep-Gapfill)

Migration fixes