Adds the option to save message headers in MHTML.
Features
- Added APIs to read 'Get Total Items Count' from 'PersonalStorage'.
- Added support for additional folders: Activity, DistList, and RSS to StandardIpmFolder.
- Added 'Decrypt' method to 'MapiMessage'.
- Added APIs to set product ID.
- Added 'IsInline' property to 'Attachment'.
- Added support for IMAP Login password syntax with special characters.
- Added the option to save message headers in MHTML.
- Added the ability to extract messages from OLM and MBOX identifiers.