Add packetdrill formula (WIP)

Can packetdrill be built for mac-os? #3
google/packetdrill#3

release packetdrill #147
nplab/packetdrill#147

Formula/packetdrill.rb

@@ -0,0 +1,11 @@
+class Testres < Formula
+	desc "packetdrill with UDPLite and SCTP support and bug fixes for FreeBSD
+	homepage "https://github.com/nplab/packetdrill"
+	url "https://github.com/nplab/packetdrill"
+	sha256 "282c08206d075777c22e8ffddf179a5a17aa89a555e6ff69a8aba4b55845cc"
+	def install
+		system "make", "install"
+		system "cd packetdrill/gtests/net/packetdrill/; ./configure"
+		system "make"
+	end
+end

README.md

@@ -16,4 +16,5 @@ brew uninstall testres
 The following formulae are available:
 
 - [testres](https://github.com/ligurio/testres): hyperfast web frontend for software testing results
-- [postgrespro](https://github.com/postgrespro/postgrespro): PostgrePro (feature-rich PostgreSQL fork)
+- [postgrespro](https://github.com/postgrespro/postgrespro): PostgresPro (feature-rich PostgreSQL fork)
+- [packetdrill](https://github.com/nplab/packetdrill): feature-rich [packetdrill](https://github.com/google/packetdrill) fork