Add AppVeyor

.appveyor.yml

@@ -0,0 +1,29 @@
+clone_depth: 2
+clone_folder: c:\projects\sentry-php
+
+cache:
+  - composer.phar
+
+init:
+  - SET PATH=c:\php;%PATH%
+  - SET COMPOSER_NO_INTERACTION=1
+  - SET SYMFONY_DEPRECATIONS_HELPER=strict
+  - SET ANSICON=121x90 (121x90)
+
+install:
+  - mkdir c:\php && cd c:\php
+  - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-7.1.3-Win32-VC14-x86.zip
+  - 7z x php-7.1.3-Win32-VC14-x86.zip -y >nul
+  - echo memory_limit=-1 >> php.ini
+  - echo zend_extension=php_opcache.dll >> php.ini
+  - echo opcache.enable_cli=1 >> php.ini
+  - cd c:\projects\symfony
+  - IF NOT EXIST composer.phar (appveyor DownloadFile https://github.com/composer/composer/releases/download/1.8.0/composer.phar)
+  - php composer.phar self-update
+  - php composer.phar global require --no-progress --no-scripts --no-plugins hirak/prestissimo
+  - php composer.phar update --no-progress --no-suggest --ansi
+
+test_script:
+  - SET X=0
+  - php phpunit || SET X=!errorlevel!
+  - exit %X%