Merge branch '385-add-issue-templates-for-features-bugs-tasks' into 'develop'

Resolve "Add issue templates for features, bugs, tasks"

Closes #385

See merge request t3o/typo3.org!265

.gitlab/issue_templates/Bugreport.md

+<!---
+Please read this!
+
+Before opening a new issue, make sure to search for keywords in the issues
+filtered by the "bug" label.
+
+For Layout issues please use this tracker:
+
+- https://git-t3o.typo3.org/t3o/t3olayout/issues?label_name%5B%5D=bug
+
+and verify the issue you're about to submit isn't a duplicate.
+--->
+
+### Summary
+
+(Summarize the bug encountered concisely)
+
+### Steps to reproduce
+
+(How one can reproduce the issue - this is very important)
+
+### Example URL
+
+(Add an Url where we can see the issue)
+
+### What is the current *bug* behavior?
+
+(What actually happens)
+
+### What is the expected *correct* behavior?
+
+(What you should see instead)
+
+**Acceptence Criterias**
+
+* [ ]  Must be fullfilled
+
+### Relevant logs and/or screenshots
+
+(Paste any relevant logs - please use code blocks (```) to format console output,
+logs, and code as it's very hard to read otherwise.)
+
+### Possible fixes
+
+(If you can, link to the line of code that might be responsible for the problem)
+
+/label ~bug

.gitlab/issue_templates/Feature.md

+### Problem to solve
+
+<!--- What problem do we solve? -->
+
+### Further details
+
+<!--- Include use cases, benefits, and/or goals (contributes to our vision?) -->
+
+### Proposal
+
+<!--- How are we going to solve the problem? Try to include the user journey! -->
+
+### What does success look like, and how can we measure that?
+
+<!--- Define both the success metrics and acceptance criteria. Note that success metrics indicate the desired business outcomes, while acceptance criteria indicate when the solution is working correctly. If there is no way to measure success, link to an issue that will implement a way to measure this -->
+
+**Acceptence Criterias**
+
+* [ ]  Must be fullfilled
+
+
+### Links / references
+
+
+/label ~feature

.gitlab/issue_templates/Task.md

+### Describe the task
+
+<!--- What problem do we solve? -->
+
+### Further details
+
+<!--- Include use cases, benefits, and/or goals (contributes to our vision?) -->
+
+### What does success look like, and how can we measure that?
+
+<!--- Define both the success metrics and acceptance criteria. Note that success metrics indicate the desired business outcomes, while acceptance criteria indicate when the solution is working correctly. If there is no way to measure success, link to an issue that will implement a way to measure this -->
+
+**Acceptence Criterias**
+
+* [ ]  Must be fullfilled
+
+### Links / references
+
+/label ~task