typescript-angular: spaceDelimited fix for parameters (#5630)

[LPCmedia]

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[LPCmedia]

@amakhrov let me know.

[macjohnny]

this is in conflict with #5000 by @DavidBiesack

@jimschubert we should stick to #5000, right?

[macjohnny]

conflicts with #5000

[LPCmedia]

all good for me. Let me know if I can do something to help as #5000 is not building at the moment.

[jimschubert]

Yeah, we should stick to what's defined in the spec. Collection format is ssv in 2.0 and replaced with a style parameter in 3.x (see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md#style-values). The change in this PR would mix the two concepts.

[LPCmedia]

@jimschubert should I work off #5000 to ensure the build passes or it that something imminent ?