configuration/gpg-ssh: Move GPG and SSH integration to seperate module

configuration/gpg-ssh/default.nix

@@ -0,0 +1,21 @@
+{ pkgs, lib, ... }:
+
+{
+
+  programs.gnupg.agent = {
+    enable = true;
+    enableSSHSupport = true;
+    pinentryPackage = lib.mkDefault pkgs.pinentry-curses;
+  };
+
+  environment.systemPackages = with pkgs; [
+    gnupg
+
+    # Add wrapper around ssh that takes the gnupg ssh-agent
+    # instead of gnome-keyring
+    ssh-gpg
+  ];
+
+  services.pcscd.enable = true;
+
+}