added travis testing script (kodi addon checker)

.travis.yml

@@ -0,0 +1,13 @@
+dist: xenial
+language: python
+python: 3.7
+
+install:
+  - pip install kodi-addon-checker
+
+before_script:
+- git config core.quotepath false
+
+# command to run our tests
+script:
+  - kodi-addon-checker --branch=krypton