Save original source metadata

[maawoo]

This saves the original source metadata in the source folder of the processed scene, including the manifest.safe and the content of the annotation directory.

Currently a subdirectory based on the productIdentifier is created to save the files:

Another option would be to use the complete name for the directory. E.g., in this case S1B_IW_GRDH_1SDV_20211114T190500_20211114T190525_029588_0387F4_527F. Thoughts @johntruckenbrodt ?

[johntruckenbrodt]

Thanks a lot @maawoo. I think the way you have solved it is good. Upon entering the annotation directory, one immediately sees the NRB metadata files as usual and can directly relate to the product identifier of the subdirectory via the file names. Shortening the path is also a good idea to limit the maximum possible path for windows systems.