Add tox config for vcpe scripts

This is a basic setup for tox that will run pytest tests

Change-Id: Icb15fbd30d7c13694866f447cd448a07195f4573
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
Issue-ID: INT-1427
diff --git a/.gitignore b/.gitignore
index 6d45363..543c596 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,4 @@
 *.class
 *.csar
 benchmark/
+.tox/