Adds the Compiler type

Links it from `Perl`. Closes #503

Author: JJ

doc/Type/Compiler.pod6

@@ -0,0 +1,35 @@
+=begin pod
+
+=TITLE role compiler
+
+=SUBTITLE Information related to the compiler that is being used
+
+    class Compiler does Systemic;
+
+Built-in class for providing compiler related information.  Usually accessed
+through C`compiler` attribute of the the L«C<$*PERL>|/language/variables#Dynamic_variables» dynamic variable.
+
+=head1 Methods
+
+=head2 method build-date
+
+    method build-date()
+
+Returns the date when it was built.
+
+    say $*PERL.compiler.build-date; #OUTPUT: «2018-05-05T21:49:43Z␤»
+
+=head2 method verbose-config
+
+    method verbose-config(:$say)
+
+If C<$say> is C<True>, prints the different items included in the configuration of the compiler; if it is not, returns a C<Hash> with the same information.
+
+    say $*PERL.compiler.verbose-config; # OUTPUT: «distro::auth=https://www.opensuse.org/␤distro::desc=2018-05-06T09:19:17.571307+02:00␤» ... And the rest of the configuration
+
+
+See Also: L<Systemic>
+
+=end pod
+
+# vim: expandtab softtabstop=4 shiftwidth=4 ft=perl6

doc/Type/Perl.pod6

@@ -18,7 +18,7 @@ Perl object.
 
 =head2 method compiler
 
-Instance method returning the L<compiler|/routine/compiler> object associated with the Perl
+Instance method returning the L<compiler|/routine/compiler> object, of type L<Compiler>, associated with the Perl
 object.
 
 =head2 method DISTROnames
@@ -57,7 +57,7 @@ supported by this version of Perl.
 
 =head1 See Also
 
-L<Systemic>
+L<Systemic>, L<Compiler>.
 
 =end pod