Create a cache security group.

    CLI example::

        salt myminion boto_elasticache.create_cache_security_group myelasticachesg 'My Cache Security Group'

def create_cache_security_group(name, description, region=None, key=None,
                                keyid=None, profile=None):
    '''
    Create a cache security group.

    CLI example::

        salt myminion boto_elasticache.create_cache_security_group myelasticachesg 'My Cache Security Group'
    '''
    conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)

    created = conn.create_cache_security_group(name, description)
    if created:
        log.info('Created cache security group %s.', name)
        return True
    else:
        msg = 'Failed to create cache security group {0}.'.format(name)
        log.error(msg)
        return False