configitems: move blackbox's config items to the new configitems.toml
In order for the Rust code to gain access to default values of in-core
extensions that have a Rust implementation, we need to centralize them
alongside the core items declarations.
This is the first and so far only one of the extensions that have gained
Rust support, I don't think it's worth the churn to move the rest of the
extension's configitems yet.
[templates]
docheader = '<?xml version="1.0"?>\n<log>\n'
docfooter = '</log>\n'
changeset = '<logentry revision="{rev}" node="{node}">\n{branches}{bookmarks}{tags}{parents}<author email="{author|email|xmlescape}">{author|person|xmlescape}</author>\n<date>{date|rfc3339date}</date>\n<msg xml:space="preserve">{desc|xmlescape}</msg>\n</logentry>\n'
changeset_verbose = '<logentry revision="{rev}" node="{node}">\n{branches}{bookmarks}{tags}{parents}<author email="{author|email|xmlescape}">{author|person|xmlescape}</author>\n<date>{date|rfc3339date}</date>\n<msg xml:space="preserve">{desc|xmlescape}</msg>\n<paths>\n{file_adds}{file_dels}{file_mods}</paths>\n{file_copies}</logentry>\n'
changeset_debug = '<logentry revision="{rev}" node="{node}">\n{branches}{bookmarks}{tags}{parents}<author email="{author|email|xmlescape}">{author|person|xmlescape}</author>\n<date>{date|rfc3339date}</date>\n<msg xml:space="preserve">{desc|xmlescape}</msg>\n<paths>\n{file_adds}{file_dels}{file_mods}</paths>\n{file_copies}{extras}</logentry>\n'
file_add = '<path action="A">{file_add|xmlescape}</path>\n'
file_mod = '<path action="M">{file_mod|xmlescape}</path>\n'
file_del = '<path action="R">{file_del|xmlescape}</path>\n'
start_file_copies = '<copies>\n'
file_copy = '<copy source="{source|xmlescape}">{name|xmlescape}</copy>\n'
end_file_copies = '</copies>\n'
parent = '<parent revision="{rev}" node="{node}" />\n'
branch = '<branch>{branch|xmlescape}</branch>\n'
tag = '<tag>{tag|xmlescape}</tag>\n'
bookmark = '<bookmark>{bookmark|xmlescape}</bookmark>\n'
extra = '<extra key="{key|xmlescape}">{value|xmlescape}</extra>\n'