Mostly-working Hush full node sans Verus!!!

Every line of Verus-specific code has been removed from the codebase.
This code compiles on Linux and can do a partial sync. A full sync
and other extensive tests need to be done before it's merged into
the duke branch.

BUGS:

One known bug is that the node starts to CPU mine by default, lol.

src/cc/CCinclude.h

@@ -103,17 +103,6 @@ struct CC_utxo
     int32_t vout;
 };
 
-// these are the parameters stored after Verus crypto-condition vouts. new versions may change
-// the format
-struct CC_meta
-{
-    std::vector<unsigned char> version;
-    uint8_t evalCode;
-    bool is1of2;
-    uint8_t numDestinations;
-    // followed by address destinations
-};
-
 struct CCcontract_info
 {
 	// this is for spending from 'unspendable' CC address