What are the key operations supported by the open-source ewsManage.py script for interacting with Exchange mailboxes via SOAP XML?

The script supports viewing the number of emails in inbox/outbox, listing email information (subject, sender, attachment status), retrieving detailed content of a specific email (including body), and downloading attachments – both text and binary. It uses SOAP XML messages defined in the Exchange Web Service (EWS) Development Guide and outputs results in XML files (e.g., `listmailofinbox.xml`, `getattachment.xml`). The tool also works with plaintext or NTLM hash authentication.