epeg: Move tool out of efl + update to latest version

The epeg tool was originally developed in the efl project
and was replaced by the evas package in efl long ago. The old,
unmaintained source code of epeg is still available from
an efl legacy repository https://svn.enlightenment.org/svn/e/OLD/

.

Updates and improvements to epeg have been developed and collected
in a new github repository. This patch deletes the deprecated
package from the efl project and introduces a new recipe
that installs the updated epeg tool.

In the license file, one copyright line has been added which
indicates the authors of the tool.
Moreover, in the license text, one sentence has been removed
which elaborated on what is meant by "making the source code
available publicly". However, the license still remains
an MIT style license.

Signed-off-by: Andreas Baak <andreas.baak@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>