Add metadata to each program

[timgimyee]

Issue #4.

[kentfredric]

It has come to my attention that this POD in this pull request is formatted incorrectly.

According to POD spec,

   That is, with "=for", you can have only one paragraph's worth of text
   (i.e., the text in "=foo targetname text..."), but with "=begin
   targetname" ... "=end targetname", you can have any amount of stuff in
   between. (Note that there still must be a blank line after the
   "=begin" command and a blank line before the "=end" command.)

So that means the following:

=for foo

bar

=cut

Is parsed as:

{ type => "for", formatname => "foo", text => "" }
{ type => "text", text => "bar" }
{ type => "cut" }

Where what you meant to do was

=begin foo

bar

=end foo

=cut

Which communicates:

{ type => "begin", formatname => "foo", text=>"bar\n" }
{ type => "cut" }

Subsequently, this mistake renders the "metadata" as actual documentation:

https://metacpan.org/pod/touch

Because a "blank event" ( ie: a line without content ) marks the end of the "Paragraph" which is the "=for" directive.