add read and write file by fragment and README_ZhCN.md

[OIUE]

Thank you for submitting a contribution to Apache NiFi.

Please provide a short description of the PR here:

Description of PR

Enables X functionality; fixes bug NIFI-9224.

In order to streamline the review of the contribution we ask you
to ensure the following steps have been taken:

For all changes:

• [ NIFI-9224] Is there a JIRA ticket associated with this PR? Is it referenced
  in the commit message?

• [ NIFI-9224] Does your PR title start with NIFI-XXXX where XXXX is the JIRA number you are trying to resolve? Pay particular attention to the hyphen "-" character.

• [ n] Has your PR been rebased against the latest commit within the target branch (typically main)?

• [ y] Is your initial contribution a single, squashed commit? Additional commits in response to PR reviewer feedback should be made on this branch and pushed to allow change tracking. Do not squash or use --force when pushing to allow for clean monitoring of changes.

For code changes:

• [ y] Have you ensured that the full suite of tests is executed via mvn -Pcontrib-check clean install at the root nifi folder?
• [ y] Have you written or updated unit tests to verify your changes?
• [ y] Have you verified that the full build is successful on JDK 8?
• [ y] Have you verified that the full build is successful on JDK 11?
• [y ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• [ n] If applicable, have you updated the LICENSE file, including the main LICENSE file under nifi-assembly?
• [ n] If applicable, have you updated the NOTICE file, including the main NOTICE file found under nifi-assembly?
• [ n] If adding new Properties, have you added .displayName in addition to .name (programmatic access) for each of the new properties?

For documentation related changes:

• [ y] Have you ensured that format looks appropriate for the output in which it is rendered?

Note:

Please ensure that once the PR is submitted, you check GitHub Actions CI for build issues and submit an update to your PR as soon as possible.

[exceptionfactory]

@OIUE Thank you for your contribution.

This pull request in its current form contains multiple merge commits resulting in over 1500 files changed. A new pull request should not contain any merge commits, and changes should be limited to the general scope of the associated Jira issue.

Please open a new pull request with the intended changes squashed into a single commit. That will provide an opportunity to review the intended changes without the confusion related to merge commits and conflicting files.