[PATCH v2 35/47] add lnst.Controller package imports

From: Ondrej Lichtner

To export the most commonly tester used classes needed for Recipe
implementation. Mostly just convenience for the tester to shorten the
import lines.

Signed-off-by: Ondrej Lichtner 
---
 lnst/Controller/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lnst/Controller/__init__.py b/lnst/Controller/__init__.py
index e69de29..1f97b40 100644
--- a/lnst/Controller/__init__.py
+++ b/lnst/Controller/__init__.py
@@ -0,0 +1,3 @@
+from lnst.Controller.Controller import Controller
+from lnst.Controller.Recipe import BaseRecipe
+from lnst.Controller.Requirements import HostReq, DeviceReq