Add issue template

Author: felixfbecker

.vscodeignore

@@ -14,3 +14,4 @@ appveyor.yml
 appveyor-install.ps1
 .travis.yml
 travis-php.ini
+ISSUE_TEMPLATE.md

ISSUE_TEMPLATE.md

@@ -0,0 +1,14 @@
+PHP version:  
+XDebug version:  
+Adapter version:  
+
+Your launch.json:  
+XDebug php.ini config:  
+
+XDebug logfile (from setting `xdebug.remote_log` in php.ini):  
+Adapter logfile (from setting `"log": true` in launch.json):  
+
+Code snippet to reproduce:  
+```php
+
+```