Update issue template to use new workflow model

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: Bug
+assignees: ''
+
+---
+
+## Help us help you
+  - [ ] I have checked that my issue [doesn't exist yet](https://github.com/alliedmodders/sourcemod/issues).
+  - [ ] I have tried my absolute best to reduce the problem-space and have provided the absolute smallest test-case possible.
+  - [ ] I can always reproduce the issue with the provided description below.
+
+## Environment
+  * Operating System version: 
+  * Game/AppID (with version if applicable): 
+  * Current SourceMod version: 
+  * Current SourceMod snapshot: 
+  * Current Metamod: Source snapshot:
+  - [ ] I have updated SourceMod to the [latest version](https://www.sourcemod.net/downloads.php) and it still happens.
+  - [ ] I have updated SourceMod to the [latest snapshot](https://www.sourcemod.net/downloads.php?branch=dev) and it still happens.
+  - [ ] I have updated SourceMM to the [latest snapshot](https://sourcemm.net/downloads.php?branch=dev) and it still happens.
+
+## Description
+
+
+## Problematic Code (or Steps to Reproduce)
+  ```
+  // TODO(you): code here to reproduce the problem
+  ```
+
+## Logs
+* Please attach in separate files: game output, library logs, kernel logs, and any other supporting information.
+* In case of a crash, please attach minidump or dump analyze output.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: Feature Request
+assignees: ''
+
+---
+
+## Help us help you
+  - [ ] I have checked that my issue [doesn't exist yet](https://github.com/alliedmodders/sourcemod/issues).
+
+## 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.