attr: move so symlink to -devel pkg; bootstrap pkg.
acl: move so symlink to -devel pkg; bootstrap pkg.
bzip2: move so symlink to main pkg; bootstrap pkg, supersedes chroot-bzip2.
xz: bootstrap pkg; supersedes chroot-xz.
confuse: bootstrap pkg.
libarchive: bootstrap pkg; sort build options.
xbps: bootstrap pkg; only build -tests pkg in chroot.
Removed chroot-bzip2 and chroot-xz; those are unnecessary right now.
base-chroot: clean-up dependencies; depend on xbps.