feat: Add issue template for bug report

Author: franky47

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,57 @@
+---
+name: Bug report
+about: Report something that does not work as intended
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+## Context
+
+Please answer a few questions to help us understand your problem better and guide you to a solution:
+
+<!-- Tip: place the letter x in the checkboxes to tick them:
+- [ ] Unticked checkbox
+- [x] Ticked checkbox
+
+You can also tick them by clicking after you've submitted your issue.
+ -->
+
+- What board are you using ?
+    - `example: Arduino Leonardo`
+    - _Please list any shields or other **relevant** hardware you're using_
+- What version of the Arduino IDE are you using ?
+    - `example: 1.8.5`
+- How are you using MIDI ?
+    - [ ]  Hardware Serial (DIN plugs)
+    - [ ]  USB
+    - [ ]  Other (please specify)
+- Is your problem related to:
+    - [ ]  MIDI Input (reading messages from other devices)
+    - [ ]  MIDI Output (sending messages to other devices)
+- How comfortable are you with code ?
+    - [ ]  Complete beginner
+    - [ ]  I've done basic projects
+    - [ ]  I know my way around C/C++
+    - [ ]  Advanced / professional
+
+## Describe your project and what you expect to happen:
+
+<!--
+Example: When I press a switch on my pedalboard, it sends a SysEx message that I'd like to receive on my Arduino.
+
+Note: Attachments (circuit diagrams, code examples) are most welcome and will help us understand your needs better and find a suitable solution for your issue.
+-->
+
+## Describe your problem (what does not work):
+
+<!-- 
+Example: I cannot receive SysEx messages coming from my AxeFX 2
+-->
+
+## Steps to reproduce
+
+<!--
+Please list the steps you took to hit the problem, so we can try and reproduce it.
+-->