Create pull_request_template.md (#646)

Author: kobylynskyi

.github/pull_request_template.md

@@ -0,0 +1,12 @@
+Pull Request
+---
+
+Related to #ISSUE_NUMBER
+
+Changes were made to the:
+- [ ] Java library
+- [ ] Kotlin resolver
+- [ ] Scala resolver
+- [ ] Maven plugin
+- [ ] Gradle plugin
+- [ ] SBT plugin