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A commit that adds over 7000 lines of code should have more than a three work commit message. :-)
Please write why it is moved into the efl tree, also a short description of it for people who have not heard of it and also the revision you based this on from the exactness repo would be good for tracking.
Please also merge D7591 into this. Just the source files without any build system support are a bit pointless to have in a single commit.
Note for other reviewers:
I will not do a in-depth review on the full 7000 lines here. Exactness has been around and used for a while in a separate repo. This commit only moves it over.
If someone wants to do a full code review right now, feel free to do so.