Oracles CC doc

src/cc/oracles.cpp

@@ -46,12 +46,13 @@
  The format string is a set of chars with the following meaning:
   's' -> <256 char string
   'S' -> <65536 char string
+  'd' -> <256 binary data
+  'D' -> <65536 binary data
   'c' -> 1 byte signed little endian number, 'C' unsigned
   't' -> 2 byte signed little endian number, 'T' unsigned
   'i' -> 4 byte signed little endian number, 'I' unsigned
   'l' -> 8 byte signed little endian number, 'L' unsigned
   'h' -> 32 byte hash
-  uppercase is unsigned, lowercase is a signed number
  
  create:
  vins.*: normal inputs