Create a icav2 launch wrapper script for cttsov2 and bclconvert qc pipeline services

[alexiswl]

Issue

As we put more workflows on the system, we can see patterns evolving... which we can turn into constructs to improve the consistency across different services:

Given the following step function:

Details

The following top half is generic for all ICAv2 workflow launches:

Details

Followed by a very specific ctTSOv2 Launch process:

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Followed by a generic push event step:

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Solution

Instead, the generic step function should be a construct that then calls the specific cttso state machine step.

[alexiswl]

This has been generated in the refactoring process of #192