Signed-off-by: Thierry Escande <thierry.escande@huawei.com>
Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>

This moves the 3.0 specific patches and files to an openharmony-3.0
directory.

Instead of using DISTRO_VERSION, this now uses OHOS_VERSION to determine
which OpenHarmony is built. DISTRO_VERSION has been reset to 1.99.99 to
stick to oniro-core and avoid confusion with OpenHarmony version (3.0 or
3.1 for now).

Signed-off-by: Thierry Escande <thierry.escande@huawei.com>

This provides recipe oniro-openharmony-toolchain and oniro-openharmony-bundle
recipes, which will build SDK images (self-extractable .sh file), which can be
installed into an OpenHarmony source repository, and provides alternative
toolchain and 3rd party components from Oniro project to the ones provided by
OpenHarmony project.

The oniro-openharmony-toolchain image provides prebuilt clang and musl libc
toolchain, and oniro-openharmony-bundle image extends that with various
prebuilt third-party components.

Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>