Add crashpad_database_util and its man page

tools/tools.gyp

 # Copyright 2014 The Crashpad Authors. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 42 matching lines @@
           ],
           'include_dirs': [
             '..',
           ],
           'sources': [
             'tool_support.cc',
             'tool_support.h',
           ],
         },
         {
+          'target_name': 'crashpad_database_util',
+          'type': 'executable',
+          'dependencies': [
+            'crashpad_tool_support',
+            '../client/client.gyp:crashpad_client',
+            '../compat/compat.gyp:crashpad_compat',
+            '../third_party/mini_chromium/mini_chromium.gyp:base',
+            '../util/util.gyp:crashpad_util',
+          ],
+          'include_dirs': [
+            '..',
+          ],
+          'sources': [
+            'crashpad_database_util.cc',
+          ],
+        },
+        {
           'target_name': 'catch_exception_tool',
           'type': 'executable',
           'dependencies': [
             'crashpad_tool_support',
             '../compat/compat.gyp:crashpad_compat',
             '../third_party/mini_chromium/mini_chromium.gyp:base',
             '../util/util.gyp:crashpad_util',
           ],
           'include_dirs': [
             '..',
@@ skipping 90 matching lines @@
           'sources': [
             'mac/run_with_crashpad.cc',
           ],
         },
       ],
     }, {
       'targets': [],
     }],
   ],
 }