change voicing to festival

I added another English voice since the voice included in the
repository is with accent and I think the voice I created is better for others.

I did it by adding a folder with the recordings of voice from a program named
Festival which is open source text to speach software, any sound file which is not
a recording I copied from the original folder.

I checked the license for the Festival program and I can use it for any purpose,
both commercial and non-commercial, so I want it to be GPL 3 or later licensed.

To use the added folder as the audio for the buds one can use the instructions
from the readme, so one should just build with the AUDIO environment variable
set to en_festival like so- AUDIO=en_festival ./build.sh

Signed-off-by: Moshe Nahmias <moshegrey@gmail.com>

Author: moshe742

LICENSES/GPL-3.0-or-later.txt

@@ -0,0 +1,6 @@
+version = 1
+
+[[annotations]]
+path = "config/_default_cfg_src_/res/en_festival/*"
+SPDX-FileCopyrightText = "2025 Moshe Nahmias <moshegrey@gmail.com>"
+SPDX-License-Identifier = "GPL-3.0-or-later"