Add HAS_<record>dset macros to allow detection

External device support that must also build against earlier
Base versions can use these to determine whether they need so
declare their own dset structures for each record type.

modules/database/src/std/rec/int64inRecord.dbd.pod

@@ -119,6 +119,7 @@ monitoring deadband functionality.
     %    dset common;
     %    long (*read_int64in)(struct int64inRecord *prec);
     %} int64indset;
+    %#define HAS_int64indset
     %
     field(VAL,DBF_INT64) {
         prompt("Current value")

modules/database/src/std/rec/int64outRecord.dbd.pod

@@ -145,6 +145,7 @@ monitoring deadband functionality.
     %    dset common;
     %    long (*write_int64out)(struct int64outRecord *prec);
     %} int64outdset;
+    %#define HAS_int64outdset
     %
     field(VAL,DBF_INT64) {
         prompt("Desired Output")

modules/database/src/std/rec/lsiRecord.dbd

@@ -15,6 +15,7 @@ recordtype(lsi) {
     %    dset common;
     %    long (*read_string)(struct lsiRecord *prec);
     %} lsidset;
+    %#define HAS_lsidset
     %
     field(VAL,DBF_NOACCESS) {
         prompt("Current Value")

modules/database/src/std/rec/lsoRecord.dbd

@@ -15,6 +15,7 @@ recordtype(lso) {
     %    dset common;
     %    long (*write_string)(struct lsoRecord *prec);
     %} lsodset;
+    %#define HAS_lsodset
     %
     field(VAL,DBF_NOACCESS) {
         prompt("Current Value")

modules/database/src/std/rec/printfRecord.dbd

@@ -15,6 +15,7 @@ recordtype(printf) {
     %    dset common;
     %    long (*write_string)(struct printfRecord *prec);
     %} printfdset;
+    %#define HAS_printfdset
     %
     field(VAL,DBF_NOACCESS) {
         prompt("Result")