AstroBWT algorithm (DERO) support

To test:

- Download https://github.com/deroproject/derosuite/releases/tag/AstroBWT
- Run daemon with `--testnet` in command line

In config.json:
- "coin":"dero"
- "url":"127.0.0.1:30306"
- "daemon:"true"

src/crypto/common/Coin.h

@@ -40,7 +40,8 @@ public:
     enum Id : int {
         INVALID = -1,
         MONERO,
-        ARQMA
+        ARQMA,
+        DERO
     };