cli: add '--raw' option to list command

Add '--raw' option to the list command, in addition to proper note
expansion. Newline characters in notes are escaped to be friendly to
scripting. This option may be shortened to '-r' at the user's
convenience.

In raw output mode, the information is formatted in plain pipe-delimited
strings, one line per row:

title|system|ownership|progress|notes

ownership and progress are printed in their numeric form, consistent
with the OWNERSHIP and PROGRESS dictionaries in the vgstash package.

An empty notes field will result in a line ending with a pipe and no
whitespace following it.

1 files changed, 12 insertions, 2 deletions

diff --git a/src/vgstash/test_vgstash_cli.py b/src/vgstash/test_vgstash_cli.py
index ac123ef..3ad661d 100644
--- a/src/vgstash/test_vgstash_cli.py
+++ b/src/vgstash/test_vgstash_cli.py
@@ -48,26 +48,36 @@ def test_add_full():
     assert result.exit_code == 0
     assert result.output == "Added Vectorman for Genesis. You do not own it and have beaten it. It also has notes.\n"
 
+def test_add_full_note_with_newline():
+    runner = CliRunner()
+    result = runner.invoke(vgstash_cli.cli, ['add', 'Vectorman 2', 'Genesis', 'p', 'p', 'beep\nboop'])
+    if verbose:
+        print(result.output)
+    assert result.exit_code == 0
+    assert result.output == "Added Vectorman 2 for Genesis. You physically own it and are playing it. It also has notes.\n"
+
 def test_list():
     runner = CliRunner()
-    result = runner.invoke(vgstash_cli.list_games)
+    result = runner.invoke(vgstash_cli.list_games, ['--raw'])
     if verbose:
         print(result.output)
     assert result.exit_code == 0
     assert result.output == '\n'.join((
         'Sonic the Hedgehog 2|Genesis|0|3|',
         'Vectorman|Genesis|0|3|beep',
+        'Vectorman 2|Genesis|1|2|beep\\nboop',
         'Super Mario Bros.|NES|1|2|',
         'The Legend of Zelda|NES|2|2|\n',
     ))
 
 def test_list_filter():
     runner = CliRunner()
-    result = runner.invoke(vgstash_cli.cli, ['list', 'playlog'])
+    result = runner.invoke(vgstash_cli.cli, ['list', '-r', 'playlog'])
     if verbose:
         print(result.output)
     assert result.exit_code == 0
     assert result.output == '\n'.join((
+        'Vectorman 2|Genesis|1|2|beep\\nboop',
         'Super Mario Bros.|NES|1|2|',
         'The Legend of Zelda|NES|2|2|\n',
     ))