Adding Power support(ppc64le) with ci and testing to the project for architecture independent

Author: asellappen

.travis.yml

@@ -18,6 +18,31 @@ matrix:
       dist: xenial
       sudo: true
       env: TOXENV=py38
+    - python: 2.7
+      dist: xenial
+      sudo: true
+      env: TOXENV=py27
+      arch: ppc64le  
+    - python: 3.6
+      dist: xenial
+      sudo: true
+      arch: ppc64le
+      env: TOXENV=py36
+    - python: 3.7
+      dist: xenial
+      sudo: true
+      env: TOXENV=py37
+      arch: ppc64le
+    - python: 3.8
+      dist: xenial
+      sudo: true
+      env: TOXENV=py38
+      arch: ppc64le
+    - python: 3.8
+      dist: xenial
+      sudo: true
+      env: TOXENV=cover
+      arch: ppc64le
 
 env:
   - TOXENV=py27