Add Json-Glib (#2584)

* Add Json-Glib

* Fixed per inline comments

packages/json_glib.rb

+require 'package'
+
+class Json_glib < Package
+  description 'JSON-GLib implements a full suite of JSON-related tools using GLib and GObject.'
+  homepage 'https://wiki.gnome.org/Projects/JsonGlib'
+  version '1.4.2'
+  source_url 'https://download.gnome.org/sources/json-glib/1.4/json-glib-1.4.2.tar.xz'
+  source_sha256 '2d7709a44749c7318599a6829322e081915bdc73f5be5045882ed120bb686dc8'
+
+  depends_on 'meson'
+  depends_on 'gtk_doc'
+  depends_on 'glib'
+  depends_on 'gobject_introspection'
+
+  def self.build
+    system "meson --prefix=#{CREW_PREFIX} --libdir=#{CREW_LIB_PREFIX} _build"
+    system "ninja -C _build"
+  end
+
+  def self.check
+    system "meson test -C _build"
+  end
+  
+  def self.install
+    system "DESTDIR=#{CREW_DEST_DIR} ninja -C _build install"
+  end
+end