Add Bitcloud (BTDX) support (#224)

defs/bitcoin/bitcloud.json

@@ -0,0 +1,38 @@
+{
+  "coin_name": "Bitcloud",
+  "coin_shortcut": "BTDX",
+  "coin_label": "Bitcloud",
+  "website": "https://bit-cloud.info",
+  "github": "https://github.com/LIMXTEC/Bitcloud",
+  "maintainer": "limxdev <info@bit-cloud.info>",
+  "curve_name": "secp256k1",
+  "address_type": 25,
+  "address_type_p2sh": 5,
+  "maxfee_kb": 1000000,
+  "minfee_kb": 10000,
+  "signed_message_header": "Diamond Signed Message:\n",
+  "hash_genesis_block": "000002d56463941c20eae5cb474cc805b646515d18bc7dc222a0885b206eadb0",
+  "xprv_magic": 76066276,
+  "xpub_magic": 76067358,
+  "xpub_magic_segwit_p2sh": null,
+  "xpub_magic_segwit_native": null,
+  "bech32_prefix": null,
+  "cashaddr_prefix": null,
+  "slip44": 218,
+  "segwit": false,
+  "decred": false,
+  "fork_id": null,
+  "force_bip143": false,
+  "bip115": false,
+  "default_fee_b": {
+    "Normal": 10
+  },
+  "dust_limit": 5460,
+  "blocktime_seconds": 300,
+  "uri_prefix": "bitcloud",
+  "min_address_length": 27,
+  "max_address_length": 34,
+  "bitcore": [],
+  "blockbook": [],
+  "cooldown": 100
+}