[WIP] Update multi-platform and remove oval.config usage

[redhatrises]

Description:

• Allow usage of short names e.g. rhel7 or long names e.g. Red Hat Enterprise Linux 7
• Add product currently being built instead of all products for multi-platform OVAL
• Remove usage of oval.config

Rationale:

• Use of multi_platform is a bit unwieldy.

[redhatrises]

This doesn't currently handle non-versioned products (e.g. fedora, opensuse, etc.); however, I want to get some thoughts on this PR. For non-versioned products like Fedora we could use dicts/lists in map_product_module.py or just use dicts/lists for all products.... This PR takes into account the product version from args.product in combine-ovals.py

[yuumasato]

Ok, it took me a while to understand how oval.config would not be necessary anymore.

We receive product|version from CMake build, and if we are adding platform element just for current product on build, then we know everything we need and there is no need to keep track of all versions of a product.

For non-versioned products, we should probably extract version information from their cpe dictionaries, i.e.: fedora/cpe/fedora-cpe-dictionary.xml and opensuse/cpe/opensuse-cpe-dictionary.xml. This is most likely the place with updated versions.

[redhatrises]

I am going to close this as this has fallen onto the back burner. I don't think reading CPEs are the best either if the build system can handle it.