Feature: GitHub Pull Request/Issues templates

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug Report
+description: Something not behaving the way it should? Let us know!
+title: "Bug: <Title>"
+labels: ["bug"]
+body:
+- type: textarea
+  attributes:
+    label: Describe the bug
+    description: A clear description of what the bug is. Please consider adding pictures and/or videos, as they really help!
+    placeholder: |
+      When doing X, UndertaleModTool crashes.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Reproducing steps
+    description: Steps to reproduce the behavior.
+    placeholder: |
+      1. Open X ...
+      2. Do Y ...
+      3. See error
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Setup Details
+    description: A clear and concise description of your tools and enviroment used.
+    placeholder: |
+      1. UndertaleModTool version: What UndertaleModTool version did you use? If compiled from source, please specify the commit number.
+      2. Operating system: Specify the OS and version e.g. Windows 10, Mac OS X Catalina, Ubuntu 20.04, etc.
+      3. GameMaker Game: What GameMaker game was used? Link to it!
+  validations:
+    required: true

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: UnderMiners Discord
+    url: https://discord.gg/UMwccfs2Hb
+    about: For UndertaleModTool questions, discussion, analysis and feedback

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Suggest a Feature
+description: Have an idea for something completely new that UndertaleModTool could benefit from having? Or for improving something that already exists? Let us know!
+title: "Feature: <Title>"
+labels: ["enhancement"]
+body:
+- type: dropdown
+  attributes:
+    label: Which component should be improved?
+    options: [UI/UX, Decompiler, Compiler, CLI, Lib, Other]
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Describe your feature suggestion in more detail
+    description: A clear description of your feature suggestion. Feel free to add pictures or videos directly to this description!
+    placeholder: |
+      Give a clear explanation of what you want us to add. 
+      Please don't give vague suggestions like "Make button look better" or "Add a new panel".
+      How exactly does it work? What are the inputs? What is the expected outcome?
+  validations:
+    required: true

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+<!-- A clear, in-depth description of what the changes are. Reference existing issues and add screenshots if necessary! -->
+
+### Caveats
+<!-- Any caveats, side effects or regressions of this PR -->
+
+### Notes
+<!-- Any notes or closing words -->