Added a new Randomize SDF Special Node (General)

Resolves issue #32

Win32/Scenario Editor/STRINGS.RC

@@ -210,6 +210,7 @@ STRINGTABLE
   6627, "Wandering will fight"
   6628, "End Scenario"
   6629, "Display Picture"
+  6630, "Randomize SDF"
   6651, "Give Item"
   6652, "Give Special Item"
   6653, "One-Time Do Nothing"
@@ -482,6 +483,7 @@ STRINGTABLE
   9027, "0 - no attack, 1 - attack"
   9028, "Unused"
   9029, "Scenario special message with filename"
+  9030, "Minimum value"
   9051, "Item to give"
   9052, "Num. of spec. item to give (0 .. 49)"
   9053, "Unused"
@@ -631,6 +633,7 @@ STRINGTABLE
   9327, "Unused"
   9328, "Unused"
   9329, "Unused"
+  9330, "Maximum value"
   9351, "Amount of gold to give"
   9352, "0 - give item, 1 - take away"
   9353, "Unused"
@@ -780,6 +783,7 @@ STRINGTABLE
   9627, "Unused"
   9628, "Unused"
   9629, "Unused"
+  9630, "Unused"
   9651, "Amount of food to give"
   9652, "Unused"
   9653, "Unused"
@@ -929,6 +933,7 @@ STRINGTABLE
   9927, "Unused"
   9928, "Unused"
   9929, "Unused"
+  9930, "Unused"
   9951, "Special if item not given"
   9952, "Unused"
   9953, "Unused"