rpc: add RPC subproject ot Travis CI config.

Author: Andrei Pashkin

.travis.yml

@@ -24,3 +24,9 @@ matrix:
         - pip install 'tox>=2.4.1,<3'
       script:
         - cd synchronization_service && tox
+    - language: python
+        python: "3.6"
+        install:
+          - pip install 'tox>=2.4.1,<3'
+        script:
+          - cd rpc/pyton && tox