Add templates for bug reports and feature requests

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,22 @@
+---
+name: Bug Report
+about: Report a bug or issue you have with Audacious.
+labels: ['Bug']
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Steps to reproduce**
+How and when does the bug occur?
+
+**Expected behavior**
+What do you expect to happen instead?
+
+**Additional information**
+* Audacious version and interface (Qt / GTK / Winamp)
+* Operating system and version
+* Desktop environment
+* Screenshots
+* Sample files
+* Logs (use `LANG=C audacious -V` for English output)

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,13 @@
+---
+name: Feature Request
+about: Suggest a new feature for Audacious.
+labels: ['Enhancement']
+---
+
+**Description**
+Which feature or functionality are you missing in Audacious?
+What makes it beneficial for users?
+
+**Additional information**
+* Do other audio players offer this feature?
+* Screenshots