Add unicode as a bootstrap option

extra/bootstrap/unicode/unicode.factor

@@ -0,0 +1,11 @@
+USING: parser kernel namespaces ;
+
+USE: unicode.breaks
+USE: unicode.case
+USE: unicode.categories
+USE: unicode.collation
+USE: unicode.normalize
+USE: unicode.script
+
+[ name>char [ "Invalid character" throw ] unless* ]
+name>char-hook set-global

extra/unicode/unicode.factor

@@ -1,9 +0,0 @@
-USING: unicode.syntax unicode.data unicode.breaks
-unicode.normalize unicode.case unicode.categories
-parser kernel namespaces ;
-IN: unicode
-
-! For now: convenience to load all Unicode vocabs
-
-[ name>char [ "Invalid character" throw ] unless* ]
-name>char-hook set-global