efl-mono: Share test data among other files.

Summary: Will make easier running/compiling tests in isolation.

Reviewers: segfaultxavi, felipealmeida, bu5hm4n

Reviewed By: bu5hm4n

Subscribers: bu5hm4n, cedric, reviewers, committers

Tags: efl

Differential Revision: https://phab.enlightenment.org/D7538