Merge pull request #2412 from uberhacker/add-asciinema-package

Add asciinema package

packages/asciinema.rb

+require 'package'
+
+class Asciinema < Package
+  description 'Terminal session recorder'
+  homepage 'https://asciinema.org/'
+  version '2.0.1'
+  source_url 'https://github.com/asciinema/asciinema/archive/v2.0.1.tar.gz'
+  source_sha256 '7087b247dae36d04821197bc14ebd4248049592b299c9878d8953c025ac802e4'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'python3'
+
+  def self.install
+    system "pip3 install setuptools"
+    system "python3 setup.py install --prefix #{CREW_PREFIX} --root #{CREW_DEST_DIR}"
+  end
+end