Add genstats package

Add pre-built binaries

packages/genstats.rb

+require 'package'
+
+class Genstats < Package
+  description 'genstats is a general statistics generator.'
+  homepage 'https://www.vanheusden.com/genstats/'
+  version '1.2'
+  source_url 'https://www.vanheusden.com/genstats/genstats-1.2.tgz'
+  source_sha256 'f0fb9f29750cdaa85dba648709110c0bc80988dd6a98dd18a53169473aaa6ad3'
+
+  binary_url ({
+    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/genstats-1.2-chromeos-armv7l.tar.xz',
+     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/genstats-1.2-chromeos-armv7l.tar.xz',
+       i686: 'https://dl.bintray.com/chromebrew/chromebrew/genstats-1.2-chromeos-i686.tar.xz',
+     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/genstats-1.2-chromeos-x86_64.tar.xz',
+  })
+  binary_sha256 ({
+    aarch64: 'de63231c25a96d3941458ccaeff027d4183570ab7734948159ba24bae6df54f9',
+     armv7l: 'de63231c25a96d3941458ccaeff027d4183570ab7734948159ba24bae6df54f9',
+       i686: 'e7db2eb7b5c59b2c36454a45fdb5bf5a26b69cc1a5ec54fb224fbcde68e376ad',
+     x86_64: 'f138991b7ce736c6b9728ed41acd8b52bb09c133cfea78bdce3b01388323cdae',
+  })
+
+  def self.build
+    system 'make'
+  end
+
+  def self.install
+    system "install -Dm755 genstats #{CREW_DEST_PREFIX}/bin/genstats"
+    system "install -Dm644 genstats.1 #{CREW_DEST_PREFIX}/share/man/man1/genstats.1"
+  end
+end