Add issue templates

.gitlab/issue_templates/bug.md

+## Summary
+
+(Summarize the bug encountered concisely)
+
+## Steps to reproduce
+
+(How one can reproduce the issue - this is very important)
+
+## What is the current bug behavior?
+
+(What actually happens)
+
+## What is the expected correct behavior?
+
+(What you should see instead)
+
+## Logs/Traceback
+
+(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)
+

.gitlab/issue_templates/feature.md

+## Summary
+
+(Describe the feature you're requesting)
+
+## Current behaviour/setbacks
+
+(Describe what is currently happening and why this is sub-optimal)
+
+## Desired behaviour/advantages
+
+(Describe the desired behaviour and what this will improve)
+
+## Implementation sketch
+
+(If you can, describe how you think this feature should be implemented)