7558 libscf.h should provide constants for scf_type_to_string return values

*** 92,101 ****
--- 92,119 ----
          SCF_TYPE_NET_ADDR_V4,
          SCF_TYPE_NET_ADDR_V6,
          SCF_TYPE_NET_ADDR
  } scf_type_t;
  
+ /*
+  * Values returned by scf_type_to_string
+  */
+ #define SCF_TYPE_STRING_BOOLEAN         "boolean"
+ #define SCF_TYPE_STRING_COUNT           "count"
+ #define SCF_TYPE_STRING_INTEGER         "integer"
+ #define SCF_TYPE_STRING_TIME            "time"
+ #define SCF_TYPE_STRING_ASTRING         "astring"
+ #define SCF_TYPE_STRING_OPAQUE          "opaque"
+ #define SCF_TYPE_STRING_USTRING         "ustring"
+ #define SCF_TYPE_STRING_URI             "uri"
+ #define SCF_TYPE_STRING_FMRI            "fmri"
+ #define SCF_TYPE_STRING_HOST            "host"
+ #define SCF_TYPE_STRING_HOSTNAME        "hostname"
+ #define SCF_TYPE_STRING_NET_ADDR        "net_address"
+ #define SCF_TYPE_STRING_NET_ADDR_V4     "net_address_v4"
+ #define SCF_TYPE_STRING_NET_ADDR_V6     "net_address_v6"
+ 
  typedef struct scf_time {
          int64_t         t_seconds;
          int32_t         t_ns;
  } scf_time_t;