Pass conformance tests for 1.0.3

[RoboSparrow]

We should head towards passing the official conformance tests for spec version 1.0.3

adlnet/lrs-conformance-test-suite: 1365 Tests: 1185 passed, 180 failed

As of now we are at 86.81% conformance. The majority of fails are minor conflicts.

This is a prerequisite for moving on to xApi 2.0.0 and overall next stage app development .

Doing this now helps also testing the changes we made while modernising the app ( #238, #239, #241, #243).

• https://xapi.com/conformance-test/
• https://github.com/adlnet/lrs-conformance-test-suite

[RoboSparrow]

commit 051ef16

1365 Tests: 1233 passed, 132 failed (90.33%)