Refactor some parts of bot

- Move most modules to subdirs
- Rename functions according perlcritic guidelines
- Fix and add some bugs

lib/BotLib/Xkcd.pm

@@ -0,0 +1,32 @@
+package BotLib::Xkcd;
+
+use 5.018;
+use strict;
+use warnings;
+use utf8;
+use open qw (:std :utf8);
+use Mojo::UserAgent;
+
+use version; our $VERSION = qw (1.0);
+use Exporter qw (import);
+our @EXPORT_OK = qw (Xkcd);
+
+sub Xkcd {
+	my $ua  = Mojo::UserAgent->new->connect_timeout (5)->max_redirects (0);
+	my $r = $ua->get ('https://xkcd.ru/random/')->result;
+
+	if (
+		defined $r->content &&
+		defined $r->content->headers &&
+		defined $r->content->headers->location &&
+		$r->content->headers->location ne ''
+	) {
+		return sprintf '[xkcd.ru](https://xkcd.ru/i/%s_v1.png)', substr ($r->content->headers->location, 1, -1);
+	}
+
+	return 'Комикс-стрип нарисовать не так-то просто :(';
+}
+
+1;
+
+# vim: set ft=perl noet ai ts=4 sw=4 sts=4: