Adds migration engine for peewee ORM

Change-Id: I8829dd6e3858149fad9e1c37d773c78523d8c05f
Signed-off-by: Benjamin Diaz <bdiaz@whitestack.com>
diff --git a/debian/python3-osm-mon.postinst b/debian/python3-osm-mon.postinst
index 1600da3..f83eef1 100644
--- a/debian/python3-osm-mon.postinst
+++ b/debian/python3-osm-mon.postinst
@@ -25,15 +25,15 @@
 echo "Installing python dependencies via pip..."
 pip3 install aiokafka==0.4.*
 pip3 install requests==2.18.*
-pip3 install cherrypy==14.0.*
 pip3 install jsmin==2.2.*
 pip3 install jsonschema==2.6.*
 pip3 install python-keystoneclient==3.15.*
 pip3 install six==1.11.*
-pip3 install peewee==3.1.*
+pip3 install peewee==3.8.*
 pip3 install pyyaml==3.*
 pip3 install prometheus_client==0.4.*
 pip3 install gnocchiclient==7.0.*
 pip3 install pyvcloud==19.1.1
 pip3 install python-ceilometerclient==2.9.*
+pip3 install peewee-migrate==1.1.*
 echo "Installation of python dependencies finished"