Scatter ops for webworker

[Manojbhat09]

Had to implement the pytorch scatter (torch.scatter) for an application.
This is valid with onnx scatter too.
And works

[ghost]

All CLA requirements met.

[Manojbhat09]

When I do npm run pre-commit it gives this error:

Error: Cannot find module 'C:\Users\manojpc\Documents\Deepen\actual\push\onnxjs\tools\pre-commit'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:965:15)
    at Function.Module._load (internal/modules/cjs/loader.js:841:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

[fs-eire]

When I do npm run pre-commit it gives this error:

Error: Cannot find module 'C:\Users\manojpc\Documents\Deepen\actual\push\onnxjs\tools\pre-commit'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:965:15)
    at Function.Module._load (internal/modules/cjs/loader.js:841:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

the pre-commit hook failed to launch. did you run npm ci and tsc correctly?

[fs-eire]

this test does not exist. please see https://github.com/onnx/onnx/tree/master/onnx/backend/test/data/node

[Manojbhat09]

Hi @fs-eire I actually created a test for this and it works. Do I create a new pull request now?