add travis config file

.travis.yml

@@ -0,0 +1,31 @@
+language: php
+
+sudo: false
+
+matrix:
+  include:
+      env: LARAVEL_VERSION=5.5.*
+    - php: 7.2
+      env: LARAVEL_VERSION=5.6.*
+    - php: 7.2
+      env: LARAVEL_VERSION=5.7.*
+    - php: 7.2
+      env: LARAVEL_VERSION=5.8.*
+    - php: 7.2
+      env: LARAVEL_VERSION=6.*
+
+before_install:
+  - if [[ $TRAVIS_PHP_VERSION =~ ^hhvm ]]; then echo 'hhvm.jit = false' >> /etc/hhvm/php.ini ; fi
+  - composer self-update --stable -n
+  - composer require "laravel/framework:${LARAVEL_VERSION}" --no-update -n
+
+install:
+  - travis_retry composer install --no-suggest --prefer-dist -n -o
+
+script:
+  - vendor/bin/phpunit --coverage-clover build/logs/clover.xml;
+
+after_script:
+  - wget https://scrutinizer-ci.com/ocular.phar;
+  - php ocular.phar code-coverage:upload --format=php-clover build/logs/clover.xml;
+  - bash <(curl -s https://codecov.io/bash)