Eolian: generation of the first Eo file.

Eolian: generation of the first Eo file.

The first object that we generate with Eolian is Evas_Line, as it is a
simple one.
Two files are generated during build:
- the .eo.c contains the APIs definitions invoking Eo, the Eo functions
extracting the parameters and calling the hand written functions and
Eo structures to define the objects. These hand written functions are
located in e.g evas_object_line.c.
- the .eo.h contains the APIs and Eo prototyes.

We will continue with the other objects. If you note something wrong,
please update us asap:
daniel.zaoui@samsung.com
yossi.kantor@samsung.com