Use issue templates

Author: ogham

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Report a crash, runtime error, or invalid output in dog
+---
+
+If dog does something unexpected, or displays an error on the screen, or if it outright crashes, then please include the following information in your report:
+
+- The version of dog being used (`dog --version`)
+- The command-line arguments you are using
+- Your operating system and hardware platform
+
+If it’s a crash, please include the full text of the crash that gets printed to the screen. If you’re seeing unexpected behaviour, a screenshot of the issue will help a lot.
+
+---

.github/ISSUE_TEMPLATE/compilation_error.md

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+---
+name: Compilation error
+about: Report a problem compiling dog
+---
+
+If dog fails to compile, or if there is a problem during the build process, then please include the following information in your report:
+
+- The exact dog commit you are building (`git rev-parse --short HEAD`)
+- The version of rustc you are compiling it with (`rustc --version`)
+- Your operating system and hardware platform
+- The Rust build target (the _exact_ output of `rustc --print cfg`)
+
+If you are seeing compilation errors, please include the output of the build process.
+
+---

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Request a feature or enhancement to dog
+---

.github/ISSUE_TEMPLATE/question.md

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+---
+name: Question
+about: Ask a question about dog
+---