Add issue templates

@Crementif feel free to modify these to make more sense to the graphic packs context, and for the end user

these were loosely modified from the defaults that GitHub provides

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Report an issue to help us improve the packs!
+title: "[GAME NAME] Issue"
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the issue is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Boot game up
+2. Go to here
+3. Issue that happens
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [Windows, Linux (via Wine)]
+ - Renderer [Vulkan or OpenGL]
+ - Version [e.g. 1.22.5]
+
+**Additional context**
+Add any other context about the problem here. Add a save file if it's needed at a specific point in the game.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest a game to look into, or an enhancement to an already supported game.
+title: "[GAME NAME] Request"
+labels: request
+assignees: ''
+
+---
+
+Mention a brief description of your request.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.