revert: Changes from streaming handler

[wayfarer3130]

There were issues found when running the streaming data parser, and using the async handling in JavaScript seems to produce an easier to understand version, so this change is being reverted in favour of the easier to understand version.

A limited number of changes are kept for things like constants and some jest logging configuration.

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[wayfarer3130]

@pieper - this is a revert as discussed for the streaming parsing changes. I will let you know when there is a separate PR for adding a separate class instance for async based streaming parsing.

[wayfarer3130]

@pieper - I will merge this tomorrow if you don't have any feedback. It is basically just: git revert SHA1SUM on the streaming parser.

[pieper]

That sounds good to me, thanks.