guix: qt-build-system, qt-utils: Unify wrapping of qt-programs.

Unify (guix qt-build-system wrap-all-programs) and
(guix qt-utils wrap-qt-program), so both behave the same.
The functions now reside in qt-utils to make them easily available for
packages not using the qt-build-system.

* guix/build/qt-build-system.scm (variables-for-wrapping, wrap-all-programs):
  Move from here ...
* guix/build/qt-utils.scm (variables-for-wrapping, wrap-all-qt-programs):
  ... to here. Base the later on
  (wrap-qt-program*): New function, carved out from old wrap-all-programs.
  (wrap-qt-program): Base on wrap-qt-program*, change arguments in an
  incompatible way.
* gnu/packages/bittorrent.scm (qbittorrent)[arguments]<phases>{wrap-qt}:
  Adjust to new interface of wrap-qt-program.
* gnu/packages/finance.scm (electron-cash): Likewise.
* gnu/packages/geo.scm (qgis): Likewise.
* gnu/packages/password-utils.scm (qtpass): Likewise.
* gnu/packages/video.scm (openshot): Likewise.
* gnu/packages/web-browsers.scm (kristall): Likewise.

gnu/packages/password-utils.scm

@@ -31,6 +31,7 @@
 ;;; Copyright © 2020 Vinicius Monego <monego@posteo.net>
 ;;; Copyright © 2021 Stefan Reichör <stefan@xsteve.at>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;; Copyright © 2020 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -682,8 +683,9 @@ key URIs using the standard otpauth:// scheme.")
                (install-file "qtpass.1" man)
                #t)))
          (add-after 'install 'wrap-qt
-           (lambda* (#:key outputs #:allow-other-keys)
-             (wrap-qt-program (assoc-ref outputs "out") "qtpass")
+           (lambda* (#:key outputs inputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (wrap-qt-program "qtpass" #:output out #:inputs inputs))
              #t))
          (add-before 'check 'check-setup
            ;; Make Qt render "offscreen", required for tests.