Improving project structure with Hyper Python.

Signed-off-by: Cliff Hill <xlorep@darkhelm.org>

src/playlist/__init__.py

@@ -0,0 +1 @@
+"""Automated Daily Playlist Generator for Plex Music."""

src/playlist/__main__.py

@@ -0,0 +1,12 @@
+"""Command-line interface."""
+import click
+
+
+@click.command()
+@click.version_option()
+def main() -> None:
+    """Automated Daily Playlist Generator for Plex Music."""
+
+
+if __name__ == "__main__":
+    main(prog_name="plex-playlist")  # pragma: no cover