Covers: Ecore_Drm, Ecore_Evas, Ecore_File, Ecore_IMF, and
Ecore_IMF_Evas API reference doxygen.
Summary: I had fixed some typos and wrong expressions, such
as capital letters, singular Etc. in Ecore_Drm, Ecore_Evas,
Ecore_File, Ecore_IMF, and Ecore_IMF_Evas API reference doxygen.
Test Plan: Doxygen Revision
Reviewers: stefan, cedric, raster, jpeg, Jaehyun_Cho
Subscribers: conr2d
Differential Revision: https://phab.enlightenment.org/D4680