save .env for regtest network

Author: jcramer

.env.regtest

@@ -0,0 +1,21 @@
+rpc_protocol='http'
+rpc_user='bitcoin'
+rpc_pass='password'
+rpc_host='localhost'
+rpc_port='18443'
+rpc_limit='150'
+db_name='slpdb'
+db_url='mongodb://localhost:26017' 
+core_from='543375'
+core_from_testnet='0'
+core_slp_mempool_ignore_length='1000000'
+zmq_incoming_host='0.0.0.0'
+zmq_incoming_port='29332'
+zmq_outgoing_host='0.0.0.0'
+zmq_outgoing_port='27339'
+zmq_outgoing_enable=1
+telemetry_host='status.slpdb.io'
+telemetry_advertised_host="James' MBP"
+telemetry_advertised_graph_search_host=''
+telemetry_advertised_slp_socket_host=''
+telemetry_secret='7da8a6ac0a1f03f24ae852d6769ac27e9c411ff3ba7d8ec1feae81f81924e0ac'