ANDROID-16201/update-api-34: Define PULL_REQUEST_TEMPLATE.md file

Author: dhonti-axpe

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,18 @@
+### :tickets: Jira ticket
+[LATCH-XXXX](https://jira.tid.es/browse/LATCH-XXXX)
+
+### :goal_net: What's the goal?
+_Provide a description of the overall goal. The description in the Jira ticket may help._
+
+### :construction: How do we do it?
+_Provide a description of the implementation. A list of steps would be ideal._
+* _Step 1_
+* _Step 2_
+* _Step 3_
+
+### :white_check_mark: Documentation changes?
+- [ ] No docs to update nor create
+
+### :test_tube: How can I test this?
+_If it cannot be tested explain why._
+- [ ] ...