Two symlinks have been deleted from this kconfig distribution because they
caused problems with git:

tests/symlink => sub/sub
examples/kconfiglib.py -> ../kconfiglib.py

To run kconfig's tests, you will likely need to recreate tests/symlink. To
run the examples, you will need to make sure kconfiglib.py is in the import
path, either by recreating examples/kconfiglib.py, or by adjusting the module
search path at the python level.

Also, to avoid adding unnecessary python files to the root of the module search
path, this change also moves kconfiglib.py into a directory called "import"
where it lives by itself. The examples/kconfiglib.py symlink would need to
point to the library in this new location, if recreated.