[utils] Move @material-ui/core/utils to @material-ui/utils

[mnajdova]

This PR prepares unnecessary changes for introducing the @material-ui/unstyled package. It moves the @material-ui/core/utils utilities to @material-ui/utils, so that those can be reused in the new package.

Exception from this rule is the createSvgIcon utility that was moved to '@material-ui/core/SvgIcon' because it depends on the SvgIcon component.

As part of the PR there is a codemod prepared (heavily inspired by the optimal-imports codemod), that basically replaces the old imports from @material-ui/core/utils to @material-ui/utils.

Example:

import React from 'react';
import { refType, HTMLElementType } from '@material-ui/utils';
import { capitalize } from '@material-ui/core/utils';
import { ownerDocument, isMuiElement } from '@material-ui/core/utils';
import { createSvgIcon } from '@material-ui/core/utils';

will be transformed to

import React from 'react';
import { refType, HTMLElementType, capitalize, ownerDocument, isMuiElement } from '@material-ui/utils';
import { createSvgIcon } from '@material-ui/core/SvgIcon';

---

The netlify build is failing because of the following:

3:26:54 PM: Failed to compile.
3:26:54 PM: 
3:26:54 PM: ModuleNotFoundError: Module not found: Error: Can't resolve '../../../../packages/material-ui/src/utils' in '/opt/build/repo/node_modules/@material-ui/pickers/dist'
3:26:54 PM: > Build error occurred
3:26:54 PM: Error: > Build failed because of webpack errors
3:26:54 PM:     at build (/opt/build/repo/node_modules/next/dist/build/index.js:15:918)
3:26:54 PM:     at process._tickCallback (internal/process/next_tick.js:68:7)
3:26:54 PM: error Command failed with exit code 1.
3:26:54 PM: info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
3:26:54 PM: error Command failed.
3:26:54 PM: Exit code: 1

I am open to ideas how to fix this.

[mui-pr-bot]

@material-ui/core: parsed: -0.21% 😍, gzip: -0.02% 😍
@material-ui/utils: parsed: +68.97% , gzip: +64.92%

Details of bundle changes

Generated by 🚫 dangerJS against 2bef269

[mnajdova]

I really am sorry about the +190 files changed 😢 but most of them should be just imports changes, so hopefully it won't be too hard for reviewing...

[oliviertassinari]

What do you think about keeping the same imports as before but simply having core re-export utils? It would:

• remove the need for a codemod
• remove the need for developers to import from the utils package
• solve the release fail (true until we finish the migration of pickers in the lab)
• reduce the git diff

Suggested change

	import { capitalize } from '@material-ui/utils';
	import { capitalize } from '@material-ui/core/utils';

[mnajdova]

Yeah I think that is much safer option :) will probably open new PR with only these changes

[mnajdova]

Closing in favor of #23264 as proposed in #23203 (comment)