added liquid template for cli formula

Templates/parra-cli.rb.liquid

@@ -0,0 +1,32 @@
+VERSION = "{{ release.version }}"
+ARM_SHA = "{{ release.checksum.arm }}"
+X86_SHA = "{{ release.checksum.x86 }}"
+DESCRIPTION = "{{ release.description, 'default: A utility for getting started with your next Parra.io project.' }}"
+
+class ParraCli < Formula
+  desc DESCRIPTION
+  homepage "https://parra.io"
+  license "MIT"
+  url "https://github.com/Parra-Inc/parra-cli.git", tag: VERSION
+
+  on_macos do
+    if Hardware::CPU.arm?
+      url "https://github.com/Parra-Inc/parra-cli/releases/download/v#{VERSION}/parra-cli-#{VERSION}.aarch64_apple_darwin.tar.gz"
+      sha256 ARM_SHA
+    elsif Hardware::CPU.intel?
+      url "https://github.com/Parra-Inc/parra-cli/releases/download/v#{VERSION}/parra-cli-#{VERSION}.x86_64_apple_darwin.tar.gz"
+      sha256 X86_SHA
+    end
+  end
+
+  depends_on "xcodegen"
+
+  def install
+    # Not including the `target/` base dir. Brew auto opens the top level directory.
+    if Hardware::CPU.intel?
+      bin.install "x86_64-apple-darwin/release/parra"
+    elsif Hardware::CPU.arm?
+      bin.install "aarch64-apple-darwin/release/parra"
+    end    
+  end
+end