Fixed EArticyPausableType bit flags to be used correctly

[reidtreharne]

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• The EArticyPausableType was not set up correctly, causing pause events to happen when they shouldn't. Changed the enum to use proper bit flags which fixed the issue.
• Removed the SetPauseOn function since it is no longer needed as you can set the public PauseOn variable directly (it also had the enum entries in the wrong order)

[kroaton]

Upvoted!

[j-funk]

@lpinkhard I ran into an issue while implementing Articy in C++. SetPauseOn wasn't behaving as expected. The code in this PR solved my problem.

Prior to using the code in the PR I was using SetPauseOn in the following manner:

        ArticyFlowPlayer->SetPauseOn(EArticyPausableType::Dialogue);
        ArticyFlowPlayer->SetPauseOn(EArticyPausableType::DialogueFragment);

The result was that it would pause on Flow which was unintended. Luckily I was aware of this PR and had kept it in mind during my implementation. I copied his changes into my clone of this repo and switch the snippet above to:

ArticyFlowPlayer->PauseOn = uint8(EArticyPausableType::Dialogue) | uint8(EArticyPausableType::DialogueFragment);

This worked as intended.

I wanted to give some more context and bring this PR to your attention so that it might be integrated / tested for use in master and for anyone else who stumbles on this issue.