global: enable and add smartcard related stuff

adds:
- opensc for smartcard tools
- pcscd to interact with smartcards

Changed files
+10
global
+1
global/programs/default.nix
···
./scm.nix
./gpg.nix
+
./smartcard.nix
./misc.nix
];
+9
global/programs/smartcard.nix
···
+
{pkgs, ...}: {
+
environment.systemPackages = with pkgs; [
+
opensc
+
];
+
+
services.pcscd = {
+
enable = true;
+
};
+
}