CLDR-8823 Tool for grouping calendars by behavior

[macchiati]

CLDR-8823

Here is the current data generated. Shane was also interested in having something like this metadata for calendars in cldr, to help distinguish features of the calendars and set some constraints on behavior. To be discussed is what that would look like in XML.

Note that the days/month suppress the case where the month only has the max value. The columns max days/year and max months/year are computable from the corresponding detail columns. The data is generated by the code, which cycles over 1000 years just to catch edge cases. (If there are any other edge cases for calendars we should add them).

Calendars	max days/year	max months/year	max days/month	days/year	months/year	days/month
islamic islamic-civil islamic-rgsa islamic-tbla islamic-umalqura	355	12	30	354 355	12	2=29 4=29 6=29 8=29 10=29 12=29,30
indian	366	12	31	365 366	12	1=30,31 7=30 8=30 9=30 10=30 11=30 12=30
gregorian iso8601 buddhist japanese roc	366	12	31	365 366	12	2=28,29 4=30 6=30 9=30 11=30
persian	366	12	31	365 366	12	7=30 8=30 9=30 10=30 11=30 12=29,30
coptic ethiopic ethiopic-amete-alem	366	13	30	365 366	13	13=5,6
chinese dangi	385	13	30	353 354 355 383 384 385	12 13	1=29,30 2=29,30 3=29,30 4=29,30 5=29,30 6=29,30 7=29,30 8=29,30 9=29,30 10=29,30 11=29,30 12=29,30 13=29,30
hebrew	385	13	30	353 354 355 383 384 385	12 13	2=29,30 3=29,30 4=29 6=29,30 7=29,30 8=29,30 9=29,30 10=29,30 11=29,30 12=29,30 13=29

• This PR completes the ticket.

ALLOW_MANY_COMMITS=true

[srl295]

nice. even if we don't have this as concrete metadata (which we should), this could inform the coverage and pathheader tests.

[macchiati]

Made some fixes to the data, mostly fixes for oddities in Chinese/Hebrew calendars

[mihnita]

LGTM, thank you.
M.