perl: new infrastructure
perl: remove useless patch

after the removal of cpanminus
scancpan: a new script

which creates Perl/CPAN package files
host-perl-xml-parser: rename and refactor with perl infrastructure
host-perl-module-build: new package

the version coming with host-perl is too old
manual: adding packages perl
cpanminus: remove it
qemu: add a Config.in.host

after the removal of cpanminus
perl-curses: new package
perl-net-ssleay: new package
perl-xml-libxml: new package

and its CPAN dependencies