Add build script to be used by CI platform

CI/build.sh

+#!/bin/bash
+
+export TOP_DIR=$(pwd)
+
+git clone --depth 1 --branch ${CI_COMMIT_REF_NAME} --single-branch \
+    git@gitlab.orfeo-toolbox.org:orfeotoolbox/otb-data.git
+
+mkdir build
+cd build
+cmake -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_INSTALL_PREFIX:PATH=/usr/local \
+      -DCMAKE_C_FLAGS:STRING=-fPIC -Wall -Wextra \
+      -DCMAKE_CXX_FLAGS:STRING=-fPIC -Wall -Wextra -Wno-cpp \
+      -DBUILD_SHARED_LIBS:BOOL=ON \
+      -DBUILD_TESTING:BOOL=ON \
+      -DBUILD_EXAMPLES:BOOL=ON \
+      -DOTB_USE_CURL:BOOL=ON \
+      -DOTB_USE_GLEW:BOOL=ON \
+      -DOTB_USE_GLFW:BOOL=ON \
+      -DOTB_USE_GLUT:BOOL=ON \
+      -DOTB_USE_LIBKML:BOOL=ON \
+      -DOTB_USE_LIBSVM:BOOL=ON \
+      -DOTB_USE_MAPNIK:BOOL=OFF \
+      -DOTB_USE_MPI:BOOL=OFF \
+      -DOTB_USE_MUPARSER:BOOL=ON \
+      -DOTB_USE_MUPARSERX:BOOL=ON \
+      -DOTB_USE_OPENCV:BOOL=ON \
+      -DOTB_USE_OPENGL:BOOL=ON \
+      -DOTB_USE_OPENMP:BOOL=ON \
+      -DOTB_USE_QT:BOOL=ON \
+      -DOTB_USE_QWT:BOOL=ON \
+      -DOTB_USE_SHARK:BOOL=ON \
+      -DOTB_USE_SPTW:BOOL=OFF \
+      -DOTB_DATA_ROOT:PATH=${TOP_DIR}/otb-data \
+      -DOTB_DATA_USE_LARGEINPUT:BOOL=OFF \
+      -DOTB_WRAP_QT:BOOL=ON \
+      -DOTB_WRAP_PYTHON:BOOL=ON \
+      -DOTB_WRAP_PYTHON3:BOOL=ON \
+      -Dopencv_INCLUDE_DIR:PATH=/usr/include \
+      ..
+
+make -j $(grep -c processor /proc/cpuinfo 2>/dev/null || echo 8)
+
+xvfb-run -a -n 1 -s "-screen 0 1024x768x24 -dpi 96" make test