This extends the auto-profile generation so that it can take profiles formated
in standard profile language augemented by a few special variables for
the automatically generated rules.  This will all extended the regression
tests in ways that are not currently supported, because mkprofile format
does not match of the profile language.

the special apparmorish variables are
@{gen_elf name} - generate rules for elf binaries
@{gen_bin name} - generate rules for a binary
@{gen_def} - generate default rules
@{gen name} - do @{gen_def} @{gen_bin name}

To generate a profile you do

genprofile --stdin <<EOF
/profile/name {
@{gen /profile/name}
}
EOF

eg. to generate the equivalent of
  genprofile
you would do
  genprofile --stdin <<EOF
  $test {
  @{gen $test}
  }
EOF

and the equiv of
  genprofile $file:rw
would be
  genprofile --stdin <<EOF
  $test {
  @{gen $test}
  $file rw,
  }


while it takes a little more to generate a base profile than the old syntax, it
use the actual profile language (augmented with the special variables), it is a
lot more flexible, and a lot easier to expand when new rule types are added.

eg. of something not possible with the current auto generation
    Generate a profile with a child profile and hat and a trailing profile

genprofile --stdin <<EOF
$test {
@{gen $test}

  profile $bin/open {
@{gen $bin/open}
  }

  ^hatfoo {
     $file rw,
  }
}
profile $bin/exec {
@{gen $bin/exec}
}
EOF

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-By: Steve Beattie <sbeattie@ubuntu.com>