tools: Implement aap_contact_plan_reader and add readme.md for it
This implements the aap_contact_plan_reader.py
Python tool that reads
contact plans in ION format and which configures the uD3TN nodes by
scheduling contacts between them. It also adds a small documentation on
how it can be used.
Signed-off-by: Oleksandr Nazymko oleksandr.nazymko@d3tn.com