Move ESLint cache file into node_modules

[ehsankhfr]

Fix #9970
Fix #10161

As mentioned in #9977 (comment), likewise eslint-loader, we need to support non-existing OR inaccessible path fallback for cache folder into os.tempdir, as current(new) eslint plugin doesn't support the fallback.

TEST PLAN:

To test how permission issue folder fallback works:

1. under the node_module
   • Remove the .cache folder content, if folder exists.
   • Or, create .cache folder
2. run chmod u=r--,g=r--,o=r-- node_modules/.cache
3. run npm start
4. ls node_modules/.cache should not show the .eslintcache file

To test how non-existent folder fallback works:

1. under the node_module
   • Remove the .cache folder content, if folder exists
2. run npm start
3. ls node_modules/.cache should not show the .eslintcache file

To test how normal flow of caching works:

1. under the node_module
   1. Make sure the .cache folder exists
   2. Make sure there is enough access to the folder .cache: chmod u=rwx,g=r-x,o=r-x node_modules/.cache
2. run npm start
3. ls node_modules/.cache should show the .eslintcache file

[ianschmitz]

I simplified the impl. a fair bit. Here's some more context: eslint/eslint#11757