Add kinematic-beta v0.12.0 (#2334)

Casks/kinematic-beta.rb

@@ -0,0 +1,14 @@
+cask 'kinematic-beta' do
+  version '0.12.0'
+  sha256 '161d702e25cfda4337c5f9b1315ad1487b287cd581e8951caee7ff529595370c'
+
+  # github.com/docker/kitematic was verified as official when first introduced to the cask
+  url "https://github.com/docker/kitematic/releases/download/v#{version}/Kitematic-#{version}-Mac.zip"
+  name 'Kinematic'
+  homepage 'https://kitematic.com/'
+  license :apache
+
+  app 'Kitematic (Beta).app'
+
+  zap delete: '~/Library/Application\ Support/Kitematic'
+end