Contributions to specs

Instances where Microsoft documentation was updated.

• PT_LONG is not for the unsigned
• Outlook invokes unspecified behavior with regard to PR_SENSITIVITY
• Fix size mentions for named properties
• Mention EX2019 behavior with regard to SPropertyRestriction
• MAPI_HARD_DELETE not fully documented
• relationship between DIR_ENTRYID and CONTAB_ENTRYID
• EWS: Month can have value 0 as well
• EWS: Default property table with bogus entry