Added ogs template.

workflow/manifests/ogs-template.scm

+(use-modules (guix transformations))
+
+(define transform1
+  (options->transformation '((with-input . "vtk-9.3=vtk")
+                             (with-commit . "{{ ogs_package }}={{ ogs_commit }}")
+                             ;; transformations required for mkl:
+                             ;; (with-commit . "eigen=9000b3767770f6dd0f4cfb12f4e19c71921885a4")
+                             ;; (without-tests . "eigen")
+                             ;; (with-configure-flag . "vtk=-DVTK_MODULE_USE_EXTERNAL_VTK_eigen=OFF")
+                             ;; (with-source . "vtk=https://www.vtk.org/files/release/9.3/VTK-9.3.1.tar.gz")
+                             ;; (with-input . "pybind11=pybind11@2.10")
+                             )))
+
+(packages->manifest (append (map (lambda (pkg)
+                                   (transform1 (specification->package pkg)))
+                                 '("intel-mpi-benchmarks" "{{ ogs_package }}"
+                                   "bash" "coreutils"))))