Split TaskInput and TaskOutput Node Ids from Input and Output Node Ids

[camielvs]

Description

Folded into #1004

Implements the distinction between node output and taskOutput node types, and input and taskInput - as a subset of the respective task node.

To make this work the entire handleConnection utility was refactored. It should now be much more human-readable.

Related Issue and Pull requests

Progresses Shopify/oasis-frontend#261

Type of Change

• Improvement

Checklist

• I have tested this does not break current pipelines / runs functionality
• I have tested the changes on staging

Screenshots (if applicable)

Test Instructions

Additional Comments

[camielvs]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• Rework TaskInput and TaskOutput logic #1039
• Split TaskInput and TaskOutput Node Ids from Input and Output Node Ids #1017 👈 (View in Graphite)
• Implement Node Manager #1004 : 2 other dependent PRs (#1015 , #1083 )
• useNodeManager Hook #1082 : 1 other dependent PR (#930 )
• Provide Node Manager #1081
• Add Node Manager #929
• Groundwork for Id Conversions #1090
• Separate IONodeData type from TaskNodeData type #928
• Refactor Dynamic Node Callbacks #927
• master

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