refactor: Move templates to their own crate (#83)

This PR logically separates out parts of the code to their own crates. This will be useful for future Tauri App development.

template/templates/github_issue.j2

@@ -0,0 +1,35 @@
+#### Current Behavior
+<!-- A clear and concise description of the behavior. -->
+
+#### Expected Behavior
+<!-- A clear and concise description of what you expected to happen. -->
+
+#### Additional context/Screenshots
+<!-- Add any other context about the problem here. If applicable, add screenshots to help explain. -->
+
+#### Possible Solution
+<!--- Only if you have suggestions on a fix for the bug -->
+
+#### Environment
+- Blue Build Version: {{ bb_version }}
+- Operating system: {{ os_name }} {{ os_version }}
+- Branch/Tag: {{ pkg_branch_tag }}
+- Git Commit Hash: {{ git_commit_hash }}
+
+#### Shell
+- Name: {{ shell_name }} 
+- Version: {{ shell_version }}
+- Terminal emulator: {{ terminal_name }} {{ terminal_version }}
+
+#### Rust
+- Rust Version: {{ rust_version }}
+- Rust channel: {{ rust_channel }} {{ build_rust_channel }}
+- Build Time: {{ build_time }}
+
+{%- if !recipe.is_empty() %}
+
+#### Recipe:
+```yml
+{{ recipe }}
+```
+{%- endif %}