NSFS | NC | Allow one or more buckets to use the same dir path

[naveenpaul1]

Explain the changes

1. Allow one or more buckets to use the same dir path for the storage
2. Clean after bucket delete

• delete temp dir from bucket dir,
  eg: config.NSFS_TEMP_DIR_NAME_<bucket._id> folder

3. new property _id added to bucket and account
4. config_file_exists() renamed to is_path_exists().
5. Jest test added for bucket delete

Issues: Fixed #xxx / Gap #xxx

1. NSFS | NC | Allow one or more buckets to use the same dir path for the storage #7717

Testing Instructions:

1. Create two or more buckets with the same storage path and start a multipart upload
   verify the temp folder name

• Doc added/updated
• Tests added

[shirady]

I added a few comments on the file test_nc_nsfs_schema_validation.test.js.

[liranmauda]

Released, please add the javadoc to the function for the typescript.