cli: Write album to stdout, all else to stderr

To facilitate scripting, all status messages, etc. are now printed to the
standard error stream.  If the standard output stream is not a terminal,
the name of the album to be ripped is printed there, on the assumption that the
calling script is capturing it, e.g. in a variable.

src/rupert/main.py

@@ -1,6 +1,7 @@
 import logging
 import os
 from pathlib import Path
+import sys
 from typing import Any, Dict, Iterable, List, Optional
 
 import typer
@@ -94,7 +95,7 @@ def prompt_menu(console: Console, choices: Iterable[Any]) -> int:
         console.print(f'[bright_yellow]{idx + 1})[/bright_yellow]: {choice}')
         max_ += 1
     while 1:
-        choice = Prompt.ask('Selection')
+        choice = Prompt.ask('Selection', console=console)
         try:
             i = int(choice)
         except ValueError:
@@ -155,7 +156,7 @@ def run(
         help='Increase log level (can be repated)',
     ),
 ):
-    console = Console(highlight=False)
+    console = Console(highlight=False, stderr=True)
     if verbose < 1:
         level = logging.WARNING
     elif verbose < 2:
@@ -179,6 +180,8 @@ def run(
         release = get_release_by_id(mbid)
     else:
         release = prompt_release(console, dev)
+    if not sys.stdout.isatty():
+        print(f'{release.artist_credit_phrase} - {release.title}')
     console.print(f'Ripping {format_release(release)}')
 
     num_discs = len(release.medium_list)