Add voxceleb database

• Converted VoxCeleb to CSV dataset
• Uploaded the archive to the bob data server
• Adapted configuration and database files to point to the proper database url

bob/bio/spear/config/database/voxceleb.py

+#!/usr/bin/env python
+# @author: Yannick Dayer <yannick.dayer@idiap.ch>
+# @date: Fri 24 Jun 2022 17:55:05 UTC+02
+
+"""VoxCeleb CSV database interface default configuration"""
+
+from bob.bio.spear.database import SpearBioDatabase
+
+database = SpearBioDatabase(
+    "voxceleb",
+    protocol="voxceleb1",
+)