Add siibra package

packages/py-neuroglancer-scripts/package.py

+from spack.package import *
+
+
+class PyNeuroglancerScripts(PythonPackage):
+    """Conversion of images to the Neuroglancer pre-computed format"""
+
+    homepage = "https://github.com/HumanBrainProject/neuroglancer-scripts"
+    pypi     = "neuroglancer-scripts/neuroglancer-scripts-1.1.0.tar.gz"
+
+    maintainers = ['Yann Leprince']
+
+    version('1.1.0',    sha256='395a3565808136950a1e3296b43eeda13a0108d2286eba2b2924b33c3b3abc70')
+    version('1.0.0',    sha256='524c0e3a3faebaf3952953f8097af347655bed3e70b3a4bc4043a6f216db7d28')
+    version('1.0.0rc3', sha256='715811702fe4fc88210d54ea913787ab84e17b0ff4b7c62d30130f302a0a8335')
+    version('0.3.0',    sha256='dd85c946f44f5211adf55eba04886e41dc36e9a94c723b966a8485c06d7ed253')
+    version('0.2.0',    sha256='98d906347acf1be6a6cb49ed8753d51776ed38034f395b60de15bcf790e9533c')
+
+    depends_on('python@3.5:',    type=('build', 'run'))
+
+    depends_on('py-nibabel',      type=('build', 'run'))
+    depends_on('py-numpy',        type=('build', 'run'))
+    depends_on('py-pillow',       type=('build', 'run'))
+    depends_on('py-requests',     type=('build', 'run'))
+    depends_on('py-scikit-image', type=('build', 'run'))
+    depends_on('py-tqdm',         type=('build', 'run'))
+
+    # Not needed for the purpose siibra-python
+    # depends_on('py-imagecodecs',  type=('build', 'run')) # TODO: had some issues