add RP500 delay settings

gdigi.h

@@ -444,7 +444,16 @@ enum {
   DELAY_TYPE_DIGITAL = 1045,
   DELAY_TYPE_MODULATED = 1047,
   DELAY_TYPE_PONG = 1048,
-  DELAY_TYPE_TAPE = 1049
+  DELAY_TYPE_TAPE = 1049,
+
+  DELAY_RP500_TYPE_DIGITAL = 1052,
+  DELAY_RP500_TYPE_ANALOG = 1053,
+  DELAY_RP500_TYPE_DM = 1058,
+  DELAY_RP500_TYPE_ECHOPLEX = 1057,
+  DELAY_RP500_TYPE_MODULATED = 1054,
+  DELAY_RP500_TYPE_PONG = 1055,
+  DELAY_RP500_TYPE_REVERSE = 1064,
+  DELAY_RP500_TYPE_TAPE = 1056,
 };
 
 #define DELAY_TYPE 1856
@@ -475,6 +484,22 @@ enum {
 #define TAPE_WOW 1891
 #define TAPE_FLUTTER 1892
 
+#define DELAY_LEVEL 1860
+#define DELAY_REPEATS 1863
+#define DELAY_TAP_TIME 1868
+#define DELAY_DUCK_THRESH 1889
+#define DELAY_DUCK_LEVEL 1890
+#define DELAY_REPEAT_RATE 1898
+#define DELAY_ECHO 1895
+#define DELAY_INTENSITY 1896
+#define DELAY_TIME_0_760 1899
+#define DELAY_VOLUME 1893
+#define DELAY_REPEATS_0_99 1874
+#define DELAY_DEPTH 1873
+#define DELAY_TAP_TIME_0_4990 1900
+#define DELAY_MIX 1902
+#define DELAY_TIME_0_4650 1901
+
 enum {
   REVERB_TYPE_TWIN = 1146,
   REVERB_TYPE_LEX_AMBIENCE = 1150,