Define a separate structure to represent main features. This allows

for faster main features lookup. One side effect of this change is
that subfeatures can no longer have labels nor be ignored. I do not
think that this is a problem in practice, and actually this makes a
lot of sense.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/branches/lm-sensors-3.0.0@4834 7894878c-1315-0410-8ee3-d5d059ff63e0

lib/data.h

@@ -123,7 +123,9 @@ typedef struct sensors_bus {
 /* Internal data about all features of a type of chip */
 typedef struct sensors_chip_features {
 	struct sensors_chip_name chip;
+	struct sensors_feature *feature;
 	struct sensors_subfeature *subfeature;
+	int feature_count;
 	int subfeature_count;
 } sensors_chip_features;