Move block data files to CIFS share

This is the vast majority of disk space used on the host currently.

site-cookbooks/kosmos-bitcoin/attributes/default.rb

@@ -6,6 +6,8 @@ node.default['bitcoin']['network']   = 'mainnet'
 node.default['bitcoin']['conf_path'] = '/home/satoshi/.bitcoin/bitcoin.conf'
 node.default['bitcoin']['walletdir'] = '/home/satoshi/.bitcoin'
 node.default['bitcoin']['datadir']   = '/mnt/data/bitcoin'
+node.default['bitcoin']['blocksdir'] = '/mnt/data/blocks'
+node.default['bitcoin']['blocksdir_mount_type'] = 'cifs'
 
 node.default['bitcoin']['conf'] = {
   irc: 1,