Add virtual::libs::libgles

Make it possible to overwrite the libgles package. Defaults to
libs::mesa3d.

recipes/virtual/libs/libgles.yaml

@@ -0,0 +1,19 @@
+multiPackage:
+    "":
+        depends:
+            - name: ${CONFIG_SELECT_LIBGLES:-libs::mesa3d}
+              use: []
+
+    dev:
+        depends:
+            - name: ${CONFIG_SELECT_LIBGLES:-libs::mesa3d}-dev
+              use: []
+
+    tgt:
+        depends:
+            - name: ${CONFIG_SELECT_LIBGLES:-libs::mesa3d}-tgt
+              use: []
+
+provideDeps: [ "*" ]
+provideVars:
+    CONFIG_SELECT_LIBGLES_PKG: "${CONFIG_SELECT_LIBGLES:-libs::mesa3d}"