evas3d examples: Add EFL_EO_API_SUPPORT where needed

I might have broken this in a previous commit in evas headers,
but the thing is that beta does not imply eo api, so both are
still required.

src/examples/elementary/evas3d_map_example.c

@@ -1,4 +1,5 @@
 #define EFL_BETA_API_SUPPORT
+#define EFL_EO_API_SUPPORT
 
 #include <Elementary.h>
 

src/examples/elementary/evas3d_object_on_button_example.c

@@ -8,6 +8,7 @@
 
 
 #define EFL_BETA_API_SUPPORT
+#define EFL_EO_API_SUPPORT
 
 #include <Eo.h>
 #include <Evas.h>

src/examples/elementary/evas3d_scene_on_button_example.c

@@ -7,6 +7,7 @@
 */
 
 #define EFL_BETA_API_SUPPORT
+#define EFL_EO_API_SUPPORT
 
 #define WIDTH 500
 #define HEIGHT 500