Fixes #22: "ComposedObject" Annotation does not add inputSpec to element configuration

[riul88]

Signed-off-by: Raul Robledo riul88@gmail.com

Q	A
Documentation	no
Bugfix	yes
BC Break	yes/no
New Feature	no
RFC	yes/no
QA	yes/no

Description

Fix suggested by @weierophinney Issue reproducible by unit test testAllowsComposingChildEntities but the test case didn't validate the filters or validators from the child entity, the unit test was updated as part of this PR to perform the missing assertions to ensure the element validators and filters are configured

The changes to unit test testAllowsComposingMultipleChildEntities which is used when ComposedObject is marked as isCollection are only preventive not impacted by the code change in the PR

[Slamdunk]

Thank you @riul88