Create an OTP help topic

This allows the various OTP related commands to be grouped together
in the IPA CLI documentation.

Reviewed-By: Petr Vobornik <pvoborni@redhat.com>

ipalib/plugins/otpconfig.py

@@ -49,6 +49,8 @@ EXAMPLES:
 
 register = Registry()
 
+topic = ('otp', _('One time password commands'))
+
 
 @register()
 class otpconfig(LDAPObject):

ipalib/plugins/otptoken.py

@@ -61,6 +61,8 @@ EXAMPLES:
 
 register = Registry()
 
+topic = ('otp', _('One time password commands'))
+
 TOKEN_TYPES = {
     u'totp': ['ipatokentotpclockoffset', 'ipatokentotptimestep'],
     u'hotp': ['ipatokenhotpcounter']

ipalib/plugins/otptoken_yubikey.py

@@ -44,6 +44,9 @@ EXAMPLES:
 
 register = Registry()
 
+topic = ('otp', _('One time password commands'))
+
+
 @register()
 class otptoken_add_yubikey(Command):
     __doc__ = _('Add a new YubiKey OTP token.')