Added new custom variants for icon

* lagtraj [default: false]:  for lagrangian trajectories icon external
  (dev by SF, not in official icon repo)
* dbgstream [default false]: for custom debug stream icon external (dev
  by SF, not in official icon repo)

repos/c2sm/packages/icon/package.py

@@ -170,6 +170,14 @@ class Icon(AutotoolsPackage, CudaPackage):
             description='Enable usage of ComIn toolbox '
             'for building plugins.')
 
+    variant('lagtraj',
+            default=False,
+            description='Enable usage of the lagrangian trajectories module ')
+
+    variant('dbgstream',
+            default=False,
+            description='Enable usage of the debug stream module ')
+
     # Optimization Features:
     variant('loop-exchange', default=True, description='Enable loop exchange')
     variant('vectorized-lrtm',
@@ -354,6 +362,8 @@ def configure_args(self):
                 'cuda-graphs',
                 'silent-rules',
                 'comin',
+                'lagtraj',
+                'dbgstream',
         ]:
             args += self.enable_or_disable(x)