edje_cc: add lookup for inherited after program

edje_cc: add lookup for inherited after program

Summary:
"after" program inherited from inherit_only group does not have original
program lookup, but _edje_program_copy() doesn't consider this case.
When it fails to copy program lookup, new program lookup should be appeded.

@fix

Test Plan: make attached program and run

Reviewers: cedric, jpeg, Hermet

Reviewed By: Hermet

Subscribers: taxi2se

Differential Revision: https://phab.enlightenment.org/D4253

Change-Id: I0abc4ad89688e408d2e56d202dba90a6f2cee570