(bug 54826) Enable EducationProgram on the Spanish Wikipedia

This patch enables the EducationProgram extension on the Spanish
Wikipedia (eswiki) per community request; see bug for URL with
on-wiki consensus for the change. The Spanish translation
for $wmgEducationProgramDYKCat was kindly provided by bug submitter.

(The extension has been fully translated into Spanish on Translatewiki.)

Bug: 54826
Change-Id: Idf3d201945ffe2281021ce6236f03e70f61793d4