[EFL] Inspector page is not loaded.
https://bugs.webkit.org/show_bug.cgi?id=130661

Patch by Sangyong Park <sy302.park@gmail.com> on 2014-03-24
Reviewed by Gyuyoung Kim.

Inspector page is not loaded, because some javascript files are not installed.
(InspectorJSBackendCommands.js, InspectorWebBackendCommands.js)

* Source/PlatformEfl.cmake:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@166152 268f45cc-cd09-0410-ab3c-d52691b4dbfc