feat(github): add v4 issues templates

Author: hawkeye64

.github/ISSUE_TEMPLATE/bug_report_v4.md

@@ -0,0 +1,43 @@
+---
+name: Bug report (v4)
+about: Create a report to help us improve
+title: ''
+labels: 'v4'
+assignees: ''
+
+---
+
+For a legitimate bug, in order to process faster, please go here https://codepen.io/collection/qOBOEG, select the correct CodePen for your Calendar type and fork the codepen, add code to reproduce the bug and submit link here (don't forget to save your codepen):
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**QCalendar (please complete the following information):**
+ - Version [e.g. 4.0.0]
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request_v4.md

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+---
+name: Feature request (v4)
+about: Suggest an idea for this project
+title: ''
+labels: 'v4'
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.