fn:replace: named capture groups

Editorial notes (to be continued)

JNodes symmetry: atomization, element-to-map

`fn:matching-segments`: named capture groups

Binary Module: `bin:count-ones` for counting bits (population)

Drop XPTY0019 and XPTY0020 in favour of XPTY0004

XSLT: result of xsl:array-member

Add options record as second parameter to `fn:collection` and `fn:uri-collection`

Editorial notes (incremental)

Reintroduce xsl:record