libfslcodec: Use python functions to split and amend metadata
The metadata amending, to include the INSANE_SKIP hacks, need to be
done before we run the QA checks. This has change now that the QA
checks are run in a separate task.
To accomodate the code to this the recipe needed to be reworked to use
separated methods to:
- split the packages for the plugins;
- generate the needed rdepends for the meta package;
- apply the quirks;
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
