Create gobject_introspection

Dependency for building gtk

packages/gobject_introspection

+require 'package'
+
+class Gobject_introspection < Package
+  description 'GObject introspection is a middleware layer between C libraries (using GObject) and language bindings.'
+  homepage 'https://wiki.gnome.org/action/show/Projects/GObjectIntrospection'
+  version '1.52.1'
+  source_url 'https://ftp.gnome.org/pub/gnome/sources/gobject-introspection/1.52/gobject-introspection-1.52.1.tar.xz'
+  source_sha256 '2ed0c38d52fe1aa6fc4def0c868fe481cb87b532fc694756b26d6cfab29faff4'
+
+  depends_on 'glib'
+  depends_on 'flex'
+
+  def self.build
+    system './configure'
+    system 'make'
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end