move subdomain version numbers to config for easier imports

blockstack/lib/config.py

@@ -641,6 +641,16 @@ NAMESPACE_DEFAULT = {
    'block_number': 0
 }
 
+# for subdomain DIDs
+SUBDOMAIN_ADDRESS_VERSION_BYTE = 63             # 'S'
+SUBDOMAIN_ADDRESS_MULTISIG_VERSION_BYTE = 50    # 'M'
+
+if BLOCKSTACK_TESTNET:
+    SUBDOMAIN_ADDRESS_VERSION_BYTE = 127            # 't'
+    SUBDOMAIN_ADDRESS_MULTISIG_VERSION_BYTE = 142   # 'z'
+
+SUBDOMAIN_ADDRESS_VERSION_BYTES = [SUBDOMAIN_ADDRESS_VERSION_BYTE, SUBDOMAIN_ADDRESS_MULTISIG_VERSION_BYTE]
+
 # global mutable state 
 blockstack_opts = None
 bitcoin_opts = None