rename palladium-node-data to .palladium to follow Unix standards

Rename the data directory from palladium-node-data/ to .palladium/
to align with Unix convention for application data directories.
This change makes the directory hidden by default and follows the
standard naming pattern used by blockchain nodes

.palladium/palladium.conf

@@ -0,0 +1,38 @@
+rpcuser=username
+rpcpassword=password
+
+server=1
+listen=1
+daemon=1
+discover=1
+txindex=1
+addressindex=1
+timestampindex=1
+spentindex=1
+
+# pruned = 0
+
+bind=0.0.0.0
+port=2333
+rpcport=2332
+rpcbind=0.0.0.0
+
+rpcallowip=172.17.0.0/16
+rpcallowip=172.18.0.0/16
+
+maxconnections=50
+fallbackfee=0.0001
+
+# Addnodes:
+seednode=dnsseed.palladium-coin.store
+
+addnode=89.117.149.130:2333
+addnode=66.94.115.80:2333
+addnode=173.212.224.67:2333
+addnode=82.165.218.152:2333
+
+# ZeroMQ Configuration
+zmqpubrawblock=tcp://0.0.0.0:28334
+zmqpubrawtx=tcp://0.0.0.0:28335
+zmqpubhashblock=tcp://0.0.0.0:28332
+zmqpubhashtx=tcp://0.0.0.0:28333