Create .travis.yml

Author: dhassanali

.travis.yml

@@ -0,0 +1,14 @@
+language: php
+
+php:
+  - 7.2
+  - 7.3
+  
+before_script:
+  - travis_retry composer install --no-interaction
+  
+script:
+  - vendor/bin/phpunit --coverage-clover clover.xml
+
+after_script:
+  - bash <(curl -s https://codecov.io/bash)