[config] added casiasurf config file

bob/pad/face/config/casiasurf.py

+#!/usr/bin/env python
+"""CASIA-SURF is a database for face PAD experiments.
+
+"""
+
+from bob.pad.face.database import CasiaSurfPadDatabase
+
+# Directory where the data files are stored.
+# This directory is given in the .bob_bio_databases.txt file located in your home directory
+original_directory = "[YOUR_CASIASURF_DB_DIRECTORY]"
+"""Value of ``~/.bob_bio_databases.txt`` for this database"""
+
+original_extension = ".jpg"  # extension is not used to load the data in the HLDI of this database
+
+database = CasiaSurfPadDatabase(
+    protocol='classification',
+    original_directory=original_directory,
+    original_extension=original_extension,
+)
+"""The :py:class:`bob.pad.base.database.PadDatabase` derivative with CASIA-SURF 
+database settings.
+
+.. warning::
+
+   This class only provides a programmatic interface to load data in an orderly
+   manner, respecting usage protocols. It does **not** contain the raw
+   data files. You should procure those yourself.
+
+Notice that ``original_directory`` is set to ``[YOUR_CASIASURF_DB_DIRECTORY]``.
+You must make sure to create ``${HOME}/.bob_bio_databases.txt`` setting this
+value to the place where you actually installed the CASIA-SURF Database, as
+explained in the section :ref:`bob.pad.face.baselines`.
+"""