Add eventstat package

Eventstat periodically dumps out the current kernel event state.

Tested as working on Samsung Chromebook Plus (aarch64).

packages/eventstat.rb

+require 'package'
+
+class Eventstat < Package
+  description 'Eventstat periodically dumps out the current kernel event state.'
+  homepage 'http://kernel.ubuntu.com/~cking/eventstat/'
+  version '0.04.02'
+  source_url 'http://kernel.ubuntu.com/~cking/tarballs/eventstat/eventstat-0.04.02.tar.gz'
+  source_sha256 '1b5a1b18f7331b363ec455db05f27c08e89469de04a01c1392a7bfc149254a72'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'ncurses'
+
+  def self.build
+    system "CPPFLAGS=-I#{CREW_PREFIX}/include/ncurses make" 
+  end
+
+  def self.install
+    system "install -Dm755 eventstat #{CREW_DEST_PREFIX}/bin/eventstat"
+    system "install -Dm644 eventstat.8 #{CREW_DEST_PREFIX}/man/man8/eventstat.8"
+  end
+end