Add MuranoPackage context

- Add murano context that can upload package to Murano from
    specific path.
  - Add to rally-jobs/extra/ base structure and first Murano
    package, that is used in gates for testing purpose.

Co-Authored-By: Roman Vasilets <rvasilets@mirantis.com>
Co-Authored-By: Sergey Murashov <smurashov@mirantis.com>

Change-Id: I4767be09aec54a441cf31eb924f89444482b66d3

.gitignore

@@ -39,5 +39,6 @@ doc/source/_build/
 # Mr Developer
 .mr.developer.cfg
 .project
+.idea
 .pydevproject
 *.swp

rally-jobs/extra/README.rst

@@ -4,3 +4,8 @@ Extra files
 All files from this directory will be copy pasted to gates, so you are able to
 use absolute path in rally tasks. Files will be in ~/.rally/extra/*
 
+murano/ directory
+-----------------
+
+Here we have Murano applications that is used to prepare Murano context and
+to deploy environment.

rally-jobs/extra/murano/applications/README.rst

@@ -0,0 +1,17 @@
+Murano applications
+===================
+
+Files for Murano benchmarking
+
+Structure
+---------
+
+* <application_name>/ directories. Each directory store a simple Murano package
+  for environment deployment in Murano context. Also there can be other files
+  needs for application.
+
+
+Useful links
+------------
+
+* `More about Murano package <https://wiki.openstack.org/wiki/Murano/Documentation/How_to_create_application_package>`_