This patch changes the behaviour when both module tag and NSV?C? is
specified. The NSVC are used as a whitelist and only matching modules
will be included in the compose.
Additionally this patch adds filtering based on inheritance: when
finding the latest module for each N:S combination, only the top tag in
which the module is tagged is used. Even if a newer build is available
somewhere deeper in the inheritance, it's not going to be used.
Example inheritance and tagged modules
f29-compose (foo:1:2018:cafe)
└─ f29-candidate (foo:1:2019:cafe)
The compose will use 2018 version, because it's in the topmost tag.
JIRA: COMPOSE-2685
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
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