kmymoney: init at 5.0.1

I tried to use -DENABLE_SQLCIPHER and also passed the right directories
to the Qt 5 source of the QSQLiteDriver but CMake then failed to run
qt4_automoc, by which I'd imply that SQLCipher is not maintained
anymore (after all KMyMoney using qgpgme as well, which doesn't require
sources).

Another odd thing is that CMake reports that the weboob plugin is
disabled, but after inspecting it turns out that the reporting is just
wrong. This is already fixed upstream but not yet released in
KDE/kmymoney@8b086cf921879770971e9331f005339bfacdc84c.

In addition of running the upstream test suite I have manually tested a
few things in a VM by using the following Nix expression:

  (import <nixpkgs/nixos> {
    configuration = { pkgs, ... }: {
      environment.systemPackages = with pkgs; [
        kmymoney aqbanking gwenhywfar libchipcard python2Packages.weboob
        kgpg
      ];
      users.users.test.isNormalUser = true;
      virtualisation.diskSize = 4096;
      virtualisation.memorySize...