Generate the features list from the features directory

Newer versions of AppArmor use a features directory instead of a file
update the parser to use this to determine features and match string

This is just a first pass at this to get things up quickly.  A much
more comprehensive rework that can parse and use the full information
set is needed.

Signed-off-by: John Johansen <john.johansen@canonical.com>

parser/parser_common.c

@@ -27,6 +27,7 @@ int perms_create = 0;                   /* perms contain create flag */
 int net_af_max_override = -1;           /* use kernel to determine af_max */
 int kernel_load = 1;
 int kernel_supports_network = 1;        /* kernel supports network rules */
+int kernel_supports_mount = 0;	        /* kernel supports mount rules */
 int flag_changehat_version = FLAG_CHANGEHAT_1_5;
 int conf_verbose = 0;
 int conf_quiet = 0;