adding homebrew cask for MacOS (#4)

* adding homebrew cask for MacOS

* fix style check

Author: danikun

Casks/dev-cloud.rb

@@ -0,0 +1,17 @@
+cask "aws-vault" do
+    arch intel: "amd64"
+
+    version "2.17.0"
+    sha256 intel: "2AD52B7EDCEE543B28E01559C5DCC04B47244CD8A39A212613C1EC6117053E2C"
+
+    url "https://github.com/DocPlanner/dev-cloud-releases/releases/download/#{version}/dev-#{version}-osx-x64.zip"
+    name "Dev Cloud"
+    desc "CLI to develop applications in the cloud"
+    homepage "https://github.com/DocPlanner/dev-cloud"
+
+    binary "dev"
+
+    depends_on formula: "awscli"
+    depends_on formula: "devspace"
+    depends_on formula: "kubernetes-cli"
+  end