Add support for 0365 "modern auth"

[bitsofinfo]

Currently the getO365PSInitCommands function uses the "about to be deprecated" method of auth via New-PSSession

powershell-command-executor/o365Utils.js

Line 25 in 5101c14

module.exports.getO365PSInitCommands = function(pathToDecryptUtilScript,

Two new functions should be added to o365Utils.js

• one for the existing way to return backwards compatibility
• a new one for the cert based auth
• existing contract of getO365PSInitCommands must remain and not break others using this, must be backwards compatible!
• provide a new getO365PSInitCommands<modern?> version that will hit the cert based auth method

Also update the README w/ this info + docs/examples/comments

https://adamtheautomator.com/exchange-online-powershell-mfa/

https://techcommunity.microsoft.com/t5/exchange-team-blog/modern-auth-and-unattended-scripts-in-exchange-online-powershell/ba-p/1497387