Add pynn-brainscales

This adds a package of the BrainScaleS-2 client-side software stack and adds it to the environment.

packages/genpybind/package.py

@@ -40,6 +40,7 @@ class Genpybind(WafPackage):
     version('develop', branch='develop')
 
     version('visions', branch='master', git='https://github.com/electronicvisions/genpybind')
+    version('ebrains', tag='ebrains_release-1-rc1', git='https://github.com/electronicvisions/genpybind')
 
     depends_on(
             'llvm+clang+python+visionary@5.0.0:',
@@ -52,7 +53,7 @@ class Genpybind(WafPackage):
     def configure_args(self):
         args = super(Genpybind, self).configure_args()
 
-        if self.spec.satisfies("@visions"):
+        if self.spec.satisfies("@visions") or self.spec.satisfies("@ebrains"):
             # currently only our HEAD supports the rename
             # TODO: adapt once the change is upstream
             args.append("--genpybind-disable-tests")