Reformat lib/unicore/Name.pl
This changes the format of this generated file so that it can more
easily be used with the Unicode Name property in wildcard matching.
Each line will now end with \n\n, and the \t characters are replaced by
\n. Thus an entry will look like
00001\nSTART OF HEADING\n\n
This makes matching of user-defined patterns using anchors work under
/m, which commit
4829f32decd128e6a122bd8ce35fe944bd87f104 forces. That
commit also changed some anchors' defintions to make them match \n under
/m with wildcards, so this makes it all transparent to user patterns.
The double \n\n at the end of an entry is so that the code can
distinguish between a line that contains a code point vs a name without
relying on the content; it is a disambiguator, like the \t that used to
be.