renamed ../pexable/delivery to deliver and ../pexable/system_mediator to mediator

apps/cli/executables/pexable/deliver/ARCHITECTURE.md

apps/cli/executables/pexable/deliver/README.md

apps/cli/executables/pexable/deliver/delivery/__init__.py

apps/cli/executables/pexable/deliver/delivery/_version.py

apps/cli/executables/pexable/deliver/delivery/context.py

apps/cli/executables/pexable/deliver/delivery/deliverer.py

apps/cli/executables/pexable/deliver/delivery/delivery.py

...utables/pexable/deliver/delivery/destinations/__init__.py

...utables/pexable/deliver/delivery/destinations/checksum.py

...tables/pexable/deliver/delivery/destinations/fetchfile.py

...ables/pexable/deliver/delivery/destinations/interfaces.py

...xecutables/pexable/deliver/delivery/destinations/local.py

...tables/pexable/deliver/delivery/destinations/sharedweb.py

.../executables/pexable/deliver/delivery/destinations/tar.py

apps/cli/executables/pexable/deliver/delivery/finder.py

apps/cli/executables/pexable/deliver/delivery/products.py

apps/cli/executables/pexable/deliver/pytest.ini

apps/cli/executables/pexable/deliver/setup.py

apps/cli/executables/pexable/deliver/test/__init__.py

apps/cli/executables/pexable/deliver/test/test_api.py