Add mainnet, testnet and regtest peers for BTG (#500)

lib/coins.py

@@ -454,6 +454,12 @@ class BitcoinGold(EquihashMixin, BitcoinMixin, Coin):
     TX_PER_BLOCK = 50
     REORG_LIMIT = 1000
     RPC_PORT = 8338
+    PEERS = [
+        'electrumx-eu.bitcoingold.org s50002 t50001',
+        'electrumx-us.bitcoingold.org s50002 t50001',
+        'electrumx-eu.btcgpu.org s50002 t50001',
+        'electrumx-us.btcgpu.org s50002 t50001'
+    ]
 
     @classmethod
     def header_hash(cls, header):
@@ -496,6 +502,14 @@ class BitcoinGoldTestnet(BitcoinGold):
     RPC_PORT = 18338
     GENESIS_HASH = ('00000000e0781ebe24b91eedc293adfe'
                     'a2f557b53ec379e78959de3853e6f9f6')
+    PEERS = [
+        'test-node1.bitcoingold.org s50002',
+        'test-node2.bitcoingold.org s50002',
+        'test-node3.bitcoingold.org s50002',
+        'test-node1.btcgpu.org s50002',
+        'test-node2.btcgpu.org s50002',
+        'test-node3.btcgpu.org s50002'
+    ]
 
 
 class BitcoinGoldRegtest(BitcoinGold):
@@ -512,6 +526,7 @@ class BitcoinGoldRegtest(BitcoinGold):
     RPC_PORT = 18444
     GENESIS_HASH = ('0f9188f13cb7b2c71f2a335e3a4fc328'
                     'bf5beb436012afca590b1a11466e2206')
+    PEERS = []
 
 
 class Emercoin(Coin):