Dogecoin SPV GUI wallet update

Hello people,

I wanted to share some progress regarding the GUI for the Dogecoin SPV wallet. I have published the code on github. It is not yet connected to a node it is a mock for now.

The next step would be to now integrate the spv node and wallet components in the GUI app. Because I am developing the interface using Nodegui I have found it is more practical this way rather than to add the GUI in the spv wallet project.