CLDR-16958 Multithreaded CLDRConsoleCheck

[macchiati]

CLDR-16958

• [ ] This PR completes the ticket.

ALLOW_MANY_COMMITS=true

[macchiati]

tools/cldr-code/src/main/java/org/unicode/cldr/test/ConsoleCheckCLDR.java Note: github's diff is showing many more differences than were actually made. Hiding whitespace changes helps, but the problem is that the main loop is indented, causing different linebreaks when prettied up.

[srl295]

#3154