Add pull request template

Should make following our workflow a bit easier ;-)

.github/pull_request_template.md

@@ -0,0 +1,24 @@
+| Q            | A                                                                   |
+| ------------ | ------------------------------------------------------------------- |
+| Bug fix?     | yes / no                                                            |
+| New feature? | yes / no <!-- don't forget to update CHANGELOG.md file -->          |
+| Needs wipe?  | no <!-- set to yes if save needs to be wiped to use new feature --> |
+| Fixed issues | #... <!-- #-prefixed issue number(s), if any -->                    |
+
+### Tested on:
+- [ ] Vanilla
+- [ ] ACE
+- [ ] Local MP
+- [ ] Dedicated MP
+
+<!-- Add strikethrough if N\A, for eg. stringtable updates
+
+- [ ] ~~Not applicable~~
+-->
+
+### Description:
+
+<!--
+Write short description about this pull request
+    by replacing this comment block
+-->