Add re2 library (#5346)

* Add files via upload

* Update re2.rb
Co-authored-by: supechicken <73414985+supechicken@users.noreply.github.com>

packages/re2.rb

+require 'package'
+
+class Re2 < Package
+  description 'RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python.'
+  homepage 'https://github.com/google/re2/'
+  compatibility 'all'
+  @_ver = '2021-02-02'
+  version @_ver
+
+  source_url "https://github.com/google/re2/archive/#{@_ver}.tar.gz"
+  source_sha256 '1396ab50c06c1a8885fb68bf49a5ecfd989163015fd96699a180d6414937f33f'
+
+  def self.build
+    # cmake version doesn't provide libre2 library, use make instead
+    system 'make'
+  end
+  
+  def self.install
+    system "make DESTDIR=#{CREW_DEST_DIR} #{CREW_OPTIONS.gsub('--', '')} install"
+  end
+end