[DONT MERGE] feat(webworker): Reworking Web Worker API and new WebWorkerManager

[sedghi]

Most likely we won't merge this into main the diff is just easier to see to the main

We will merge this one first , and in cornerstone3D 2.0 we will move all decoders to the new manager as well to have central place to manage all.

Context

This PR reworks the web worker API and proposes a new set of methods to work with workers to make developers life so much easier to be able to run a function of the main thread

Changes & Results

• adds webWorkerManager to the Core
• Moves all the decoding in dicomImageLoader to use the new worker manager (previously done via worker-loader)

Testing

You should be able to follow the added documentation to easily write, register and execute a function in a way that makes a lot of sense.

Checklist

PR

• [] My Pull Request title is descriptive, accurate and follows the semantic-release format and guidelines.

Code

• [] My code has been well-documented (function documentation, inline comments, etc.)

• [] I have run the yarn build:update-api to update the API documentation, and have committed the changes to this PR. (Read more here https://www.cornerstonejs.org/docs/contribute/update-api)

Public Documentation Updates

• [] The documentation page has been updated as necessary for any public API additions or removals.

Tested Environment

• [] "OS:
• [] "Node version:
• [] "Browser:

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[sedghi]

Will work on it here https://github.com/cornerstonejs/cornerstone3D/pull/1313 and will bring it to beta first

[sedghi]

I will close this in favor of the cornerstone 2.0 PR https://github.com/cornerstonejs/cornerstone3D/pull/1400