Support request total bytes and response total bytes counting

[fansu]

Description

Support request total bytes and response total bytes counting

Motivation and Context

Support request total bytes and response total bytes counting

How Has This Been Tested?

Change has been tested by static main function and verified with IMAP access log for bytes sent and received.

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Major release (change is NOT backward compatible with prior release)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[fansu]

I need to figure out commenting on individual files. UTF-8 encoding is incorrect. Switch to US_ASCII. I also need to check why you added an exception and how that affects the call flow.

Sure, let me switch to US_ASCII everywhere.

[fansu]

I need to figure out commenting on individual files. UTF-8 encoding is incorrect. Switch to US_ASCII. I also need to check why you added an exception and how that affects the call flow.

I also removed new exception added as well