ov_core::LambdaBody class

Helper class to do OpenCV parallelization.

This is a utility class required to build with older version of opencv On newer versions this doesn't seem to be needed, but here we just use it to ensure we can work for more opencv version. https://answers.opencv.org/question/65800/how-to-use-lambda-as-a-parameter-to-parallel_for_/?answer=130691#post-id-130691