Merge pull request #1575 from uberhacker/add-fzf-package

Add fzf package

packages/fzf.rb

+require 'package'
+
+class Fzf < Package
+  description 'A command-line fuzzy finder'
+  homepage 'https://github.com/junegunn/fzf'
+  version '0.17.3'
+  source_url 'https://github.com/junegunn/fzf/archive/0.17.3.tar.gz'
+  source_sha256 'e843904417adf926613431e4403fded24fade56269446e92aac6ff1db86af81e'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'go' => :build
+
+  def self.build
+    system "make"
+    system "sed -i 's,bin/fzf,#{CREW_DEST_PREFIX}/bin/fzf,' Makefile"
+  end
+
+  def self.install
+    system "mkdir -p #{CREW_DEST_PREFIX}/bin"
+    system "make install"
+  end
+end