ohos-sanity.bbclass: Add OpenHarmony sanity checks bbclass

This bbclass is meant to handle various build configuration checks. As
per the current implementation, it handles collections deprecation.

Deprecated collections can be either completely removed or replaced by
another layer. The format of OHOS_DEPRECATED_COLLECTIONS is a list of
<DEPRECATED_COLLECTION>:<REPLACEMENT_COLLECTION>. When
<REPLACEMENT_COLLECTION> is not provided, the layer was removed without
a replacement.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>