wsk 0.9.0-incubating (new formula)

`wsk` is Apache OpenWhisk's Command-Line interface to easily create,
run, and manage OpenWhisk entities.

Closes #31231.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Formula/wsk.rb

@@ -0,0 +1,40 @@
+class Wsk < Formula
+  desc "OpenWhisk Command-Line Interface (CLI)"
+  homepage "http://openwhisk.org"
+  url "https://github.com/apache/incubator-openwhisk-cli/archive/0.9.0-incubating.tar.gz"
+  version "0.9.0-incubating"
+  sha256 "76ec64d1a505c88f7d13df898b07cdea7b13b9799747d432e0bde55f7dc2c8b9"
+
+  depends_on "go" => :build
+  depends_on "go-bindata" => :build
+  depends_on "govendor" => :build
+
+  # Add govendor support. Remove both of these on next release.
+  patch do
+    url "https://github.com/apache/incubator-openwhisk-cli/pull/362.patch?full_index=1"
+    sha256 "5f8dba945cc6684846f77a2c628ca295755b97231e5ae4a7d3d870e8a2933ad6"
+  end
+
+  patch do
+    url "https://github.com/apache/incubator-openwhisk-cli/pull/363.patch?full_index=1"
+    sha256 "eef2bc85a8a8581baba590284c47eee6c033e53e0e93d1a65608f9faad9ba0d2"
+  end
+
+  def install
+    ENV["GOPATH"] = buildpath
+    dir = buildpath/"src/github.com/apache/incubator-openwhisk-cli"
+    dir.install buildpath.children
+    cd dir do
+      system "go-bindata", "-pkg", "wski18n", "-o",
+                           "wski18n/i18n_resources.go", "wski18n/resources"
+      system "govendor", "sync"
+
+      system "go", "build", "-o", bin/"wsk"
+      prefix.install_metafiles
+    end
+  end
+
+  test do
+    system "#{bin}/wsk", "property", "set", "--apihost", "https://127.0.0.1"
+  end
+end