openharmony-image-*: Provide openharmony images - base and extra

Add recipes for for base and extra (adding i.a. GUI) images.
Both are derived from their core-class counterparts (base and weston).
Each will append necessary package groups.

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@huawei.com>

meta-ohos-core/recipes-core/images/openharmony-image-base.bb

+# Base this image on core-image-base
+include recipes-core/images/core-image-base.bb
+
+IMAGE_INSTALL_append = " \
+			packagegroup-net-essentials \
+			packagegroup-net-tools \
+			packagegroup-ble-essentials \
+			"

meta-ohos-core/recipes-core/images/openharmony-image-extra.bb

+# Base this image on core-image-weston
+include recipes-graphics/images/core-image-weston.bb
+
+IMAGE_INSTALL_append = " \
+			packagegroup-net-essentials \
+			packagegroup-net-tools \
+			packagegroup-ble-essentials \
+			"