efl: almost final ecore/evas/ecore-evas options integration.

efl: almost final ecore/evas/ecore-evas options integration.

Many changes in this commit, but overall it should work. If not let me
know.

 * ECORE_CHECK_X_EXTENSION() will now fail if Xlib extension is not found.

 * remove usage of ECORE_EVAS_CHECK_MODULE(), using the simplified
   ECORE_EVAS_MODULE()

 * EVAS_CHECK_ENGINE() will not declare an option anymore.

 * fixed --with-x11 and --with-opengl regarding defaults.

 * fixed typo in EVAS_STATIC_BUILD_SOFTWARE_X11 -> XLIB conditional

 * simplified Xi2 and Xgestures support under --enable-gesture. Let me
   know if these should be checked separately.

 * remove every other X extension option, they are all forced by
   now. If no major showstopper appears with this we may remove all
   the #ifdef in the code!

If there is something broken, let me know.

Next on the list for the weekend is to finish the option checks for
SDL, Wayland-EGL, Cocoa and similar.

SVN revision: 80505