add issue template

.gitattributes

@@ -1,4 +1,5 @@
 /.gitattributes     export-ignore
+/.github            export-ignore
 /.gitignore         export-ignore
 /.php_cs            export-ignore
 /.travis.yml        export-ignore

.github/issue_template.md

@@ -0,0 +1,16 @@
+| Q                          | A
+| -------------------------- | -----
+| Bug report?                | yes/no
+| Feature request?           | yes/no
+| BC Break report?           | yes/no
+| Symfony version            | x.y.z
+| VichUploaderBundle version | x.y.z
+
+<!--
+- Please review existing issues (including closed ones) before posting a new one
+- Please fill in this template according to your issue
+- Please use actual versions, e.g. versions copied from `composer show`
+- If you need support, e.g. you cannot make your file upload work, you
+  need to provide a way to easily reproduce it. Best way is a repository
+  with a basi installation of Symfony, VichUploaderBundle and your code
+-->