Offline builds for TFEL, PETSc and LIS
Creates a new cache in the package registry for the external dependencies. Currently these are:
In the given directory archives of source code of the external dependencies (added via
ExternalProject_Add()) can be placed to enable offline builds with these dependencies.
Follow-up on !3989 (merged).
Feature description was added to the changelog
Tests covering your feature were added?
Any new feature or behavior change was documented?