Add go-crc32 1.1

CRC32 hash with x64 optimizations

This package is a drop-in replacement for the standard library
hash/crc32 package, that features SSE 4.2 optimizations on x64
platforms, for a 10x speedup.

WWW: https://github.com/klauspost/crc32

- While I'm here:
  - Use DISTVERSIONPREFIX
  - Add LICENSE_FILE
  - Add missing RUN_DEPENDS
  - Remove GH_PROJECT

PR:		217211
Submitted by:	Guy Tabrar <guy.tabrar@me.com>

devel/Makefile

@@ -752,6 +752,7 @@
     SUBDIR += go-cobra
     SUBDIR += go-codec
     SUBDIR += go-cpuid
+    SUBDIR += go-crc32
     SUBDIR += go-faker
     SUBDIR += go-form
     SUBDIR += go-glide

devel/go-crc32/Makefile

+# $FreeBSD$
+
+PORTNAME=	crc32
+PORTVERSION=	1.1
+DISTVERSIONPREFIX=	v
+CATEGORIES=	devel
+PKGNAMEPREFIX=  go-
+
+MAINTAINER=	guy.tabrar@me.com
+COMMENT=	CRC32 hash with x64 optimizations for go
+
+LICENSE=	BSD3CLAUSE
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+USE_GITHUB= 	yes
+GH_ACCOUNT= 	klauspost
+USES= 		go
+GO_PKGNAME= 	github.com/klauspost/crc32
+
+.include <bsd.port.mk>

devel/go-crc32/distinfo

+TIMESTAMP = 1487477094
+SHA256 (klauspost-crc32-v1.1_GH0.tar.gz) = 4f48f442a3d79e936dc558843d5bcbeb9f1081c4553cb24167d035dc35abd8e4
+SIZE (klauspost-crc32-v1.1_GH0.tar.gz) = 16086

devel/go-crc32/pkg-descr

+CRC32 hash with x64 optimizations
+
+This package is a drop-in replacement for the standard library
+hash/crc32 package, that features SSE 4.2 optimizations on x64
+platforms, for a 10x speedup.
+
+WWW: https://github.com/klauspost/crc32

devel/go-crc32/pkg-plist

+%%GO_LIBDIR%%/%%GO_PKGNAME%%.a
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/LICENSE
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/README.md
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_amd64.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_amd64.s
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_amd64p32.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_amd64p32.s
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_generic.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_otherarch.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_s390x.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_s390x.s
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/crc32_test.go
+%%GO_SRCDIR%%/%%GO_PKGNAME%%/example_test.go