Switch Dash to standard BIP32 prefixes and add Chaincoin support

Co-authored-by: richardkiss <5336+richardkiss@users.noreply.github.com>

Author: Copilot

pycoin/symbols/chc.py

@@ -0,0 +1,6 @@
+from pycoin.networks.bitcoinish import create_bitcoinish_network
+
+network = create_bitcoinish_network(
+    symbol="CHC", network_name="Chaincoin", subnet_name="mainnet",
+    wif_prefix_hex="9c", address_prefix_hex="1c", pay_to_script_prefix_hex="04",
+    bip32_prv_prefix_hex="0488ade4", bip32_pub_prefix_hex="0488b21e")

pycoin/symbols/dash.py

@@ -3,4 +3,4 @@
 network = create_bitcoinish_network(
     symbol="DASH", network_name="Dash", subnet_name="mainnet",
     wif_prefix_hex="cc", address_prefix_hex="4c", pay_to_script_prefix_hex="10",
-    bip32_prv_prefix_hex="02fe52f8", bip32_pub_prefix_hex="02fe52cc")
+    bip32_prv_prefix_hex="0488ade4", bip32_pub_prefix_hex="0488b21e")

pycoin/symbols/tchc.py

@@ -0,0 +1,6 @@
+from pycoin.networks.bitcoinish import create_bitcoinish_network
+
+network = create_bitcoinish_network(
+    symbol="tCHC", network_name="Chaincoin", subnet_name="testnet",
+    wif_prefix_hex="d8", address_prefix_hex="50", pay_to_script_prefix_hex="2c",
+    bip32_prv_prefix_hex="04358394", bip32_pub_prefix_hex="043587cf")

pycoin/symbols/tdash.py

@@ -3,4 +3,4 @@
 network = create_bitcoinish_network(
     symbol="tDASH", network_name="Dash", subnet_name="testnet",
     wif_prefix_hex="ef", address_prefix_hex="8c", pay_to_script_prefix_hex="13",
-    bip32_prv_prefix_hex="3a8061a0", bip32_pub_prefix_hex="3a805837")
+    bip32_prv_prefix_hex="04358394", bip32_pub_prefix_hex="043587cf")