Refactor results and params into separate sub directories

[ywluogg]

Feature request

Because the results and params related codebase has become complex and are relatively modularized, so it's worths thinking about refactoring them into sub directories:
current proposal:
struct definitions: result_types.go, param_types.go (done)
validations: TODO
reconciler functionalities: organize into pipeline/pkg/results and pipeline/pkg/params

Use case

This is also good for sub directory reviewer setups.

[ywluogg]

@Yongxuanzhang @chuangw6

[ywluogg]

/assign jagathprakash

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[jagathprakash]

/assign jagathprakash

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@tekton-robot: Closing this issue.

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Rotten issues close after 30d of inactivity.
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