Update to CLDR v39

[bojanz]

The current data is 6 CLDR releases behind, so let's track the update here.

[bojanz]

I have tried to download the latest data to cmd/data/core, but "go run generate_resources.go" fails with:

Writing Data: yo_BJ
2020/11/06 13:11:32 failed execute "goimports" for file ../yo_BJ/yo_BJ.go: exit status 2
panic: failed execute "goimports" for file ../yo_BJ/yo_BJ.go: exit status 2

Running goimports on yo_BJ.go manually gave me:

❯ goimports -w ../yo_BJ/yo_BJ.go 
../yo_BJ/yo_BJ.go:559:35: expected ';', found b
../yo_BJ/yo_BJ.go:571:35: expected ';', found b

Here are the two offending functions in the file:

func(yo *yo_BJ) FmtTimeShort(t time.Time) string {
	
	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
b = append(b, yo.timeSeparator...)b = strconv.AppendInt(b, int64(t.Minute()), 10)


	return string(b)
}

and

// FmtTimeMedium returns the medium time representation of 't' for 'yo_BJ'
func(yo *yo_BJ) FmtTimeMedium(t time.Time) string {
	
	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
b = append(b, yo.timeSeparator...)b = strconv.AppendInt(b, int64(t.Minute()), 10)
b = append(b, yo.timeSeparator...)b = strconv.AppendInt(b, int64(t.Second()), 10)


	return string(b)
}

This means that generate_resources.go has a bug in parseDateTimeFormat().

To be continued.

EDIT: Tracked down to a missing newline on line 1344.

[bojanz]

Out of time. The v38 PR will need further work.

Opened #35 which gets us to CLDR v36.1 cleanly. Probably best to merge that and then chase the next two updates.

[bojanz]

#35 has been merged, v0.14 now has CLDR v36.1.
#38 brings us up to v37, since that one passed cleanly.

Updating to v38.1 still requires fixing additional bugs in the scripts.