Add simple stupid build script to build Brayns in nix environment (#137)

* Add simple stupid build script to build Brayns in nix environment. Required for the porting on KNL

* Update build_nix.sh

build_nix.sh

@@ -0,0 +1,57 @@
+
+#
+# simple script to build nix in any bbp-nixpkgs environment
+# with the nix module installed
+# e.g bbpviz*, bbplxviz*, knl, jureca, theta, marconi, gallileo, cooley 
+# 
+
+
+
+#  clean the environment
+module purge
+
+# load basic dev gcc env
+module load nix/dev-env-gcc
+
+# for compilation with ICC, replace the previous line with
+# module load nix/dev-env-icc/09.2016
+
+# load openGL env
+module load nix/gl-dev
+
+# load all the viz team world
+module load nix/viz/lunchbox nix/viz/zeroeq nix/viz/zerobuf nix/viz/lexis nix/viz/vmmlib nix/viz/brion 
+
+# load intel staff
+module load nix/viz/ospray nix/viz/embree
+
+# load few extra for brayns
+module load nix/jpegturbo nix/assimp
+
+# replace hdf5 module by hdf5 with cpp bindingq
+module swap nix/hdf5 nix/hdf5-cpp
+
+
+
+## start to build
+rm -rf build
+mkdir -p build
+
+cd build
+
+# run cmake
+# - disable subprojects
+# - verbose mode
+# - ignore -Werror ( failure with gcc 4.9.3 )
+# - disable deflect 
+cmake \
+ -DDISABLE_SUBPROJECTS=TRUE \
+ -DCOMMON_FIND_PACKAGE_QUIET=FALSE \
+ -DCOMMON_DISABLE_WERROR=TRUE \
+ -DBRAYNS_DEFLECT_ENABLED=OFF \
+ -DBoost_NO_BOOST_CMAKE=FALSE ../ 
+
+# build
+make -j 4
+
+