Add simple.c example of rig_get_rig_info call

tests/simple.c

@@ -0,0 +1,45 @@
+// Example of rig_get_rig_info
+// gcc -o simple simple.s -lhamlib
+
+#include <hamlib/rig.h>
+
+int main(int argc, char *argv[])
+{
+    rig_model_t model = 1;
+    RIG *rig;
+
+    rig_set_debug_level(RIG_DEBUG_WARN);
+    rig = rig_init(model);
+
+    if (rig == NULL)
+    {
+        fprintf(stderr, "rig_init failed\n");
+        return 1;
+    }
+
+    int retcode = rig_open(rig);
+
+    if (retcode != RIG_OK)
+    {
+        fprintf(stderr, "rig_open failed: %s\n", rigerror(retcode));
+        return 1;
+    }
+
+    char riginfo[1024];
+    retcode = rig_get_rig_info(rig, riginfo, sizeof(riginfo));
+
+    if (retcode != RIG_OK)
+    {
+        fprintf(stderr, "rig_get_rig_info failed: %s\n", rigerror(retcode));
+        return 1;
+    }
+
+    char vfo[16];
+    char mode[16];
+    double freq;
+    sscanf(riginfo, "VFO=%s Freq=%lf Mode=%s", vfo, &freq, mode);
+    printf("VFO=%s Freq=%.0f Mode=%s\n", vfo, freq, mode);
+    printf("=========================\nEntire response:\n%s", riginfo);
+    rig_close(rig);
+    return 0;
+}