Easy way to add a peer and change the default peers.

[inkeliz]

The wallet initialy stablish a connection with some pre-defined nodes, the same behavior of the original wallet, by RaiBlocks.

This list need to be changed by the user, if they want to.

• The hardcoded limit needs to be removed, allowing increase the limit when the user manually add some node.
  

  Nanollet/Storage/peers.go

  Line 122 in 9a6082c

  if h.Count() < 256 {

• Create a new section to add a new peers, creating a new app for wallet configuration.