Add some more Exchange timezone aliases (#464)

[alecpl]

Fixes #464

[codecov]

Codecov Report

Merging #476 (b2d082b) into master (ebe9748) will increase coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #476      +/-   ##
============================================
+ Coverage     98.68%   98.73%   +0.04%     
+ Complexity     1796     1759      -37     
============================================
  Files            65       66       +1     
  Lines          4272     4279       +7     
============================================
+ Hits           4216     4225       +9     
+ Misses           56       54       -2     

Impacted Files	Coverage Δ
lib/timezonedata/exchangezones.php	100.00% <ø> (ø)
lib/Property/Boolean.php	53.84% <0.00%> (-4.49%)	⬇️
lib/Parser/Json.php	96.72% <0.00%> (-0.11%)	⬇️
lib/Component/VCalendar.php	94.59% <0.00%> (-0.04%)	⬇️
lib/Cli.php	98.02% <0.00%> (-0.02%)	⬇️
lib/FreeBusyGenerator.php	98.10% <0.00%> (-0.01%)	⬇️
lib/Property/Text.php	99.12% <0.00%> (-0.01%)	⬇️
lib/Parameter.php	99.20% <0.00%> (-0.01%)	⬇️
lib/Parser/MimeDir.php	99.54% <0.00%> (-0.01%)	⬇️
lib/Node.php	100.00% <0.00%> (ø)
... and 29 more

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[evert]

The list of aliases is based on official microsoft sources. Do you have a source for this?

[alecpl]

The linked ticket contains a real example. So called "WebEX invitation" contains PRODID:-//Microsoft Corporation//Outlook 10.0 MIMEDIR//EN.

I don't have another source.

[evert]

Then I would discourage merging this as-is. It's not really possible to tell if that file was generated by exchange, it's just as likely that something modified it. All the files added to these aliases are all generated based on sources from real vendors, so at the very least it's sloppy to add it to the aliases file for exchange.