Add sonic adventure toolset (opengaming#998)

* Add dreamcast platform

* Add sonic adventure

* Add sonic adventure toolset

games/s.yaml

@@ -611,6 +611,31 @@
   updated: 2015-04-25
   url: http://pygame.org/shredwheat/solarwolf/index.shtml
 
+- name: Sonic Adventure Toolset
+  originals:
+  - Sonic Adventure
+  type: tool
+  repo: 'https://github.com/sonicretro/sa_tools'
+  url: 'http://info.sonicretro.org/SA_Tools'
+  development: active
+  status: playable
+  content: commercial
+  lang:
+  - 'C#'
+  framework:
+  - .NET Core
+  license:
+  - As-is
+  info: >-
+    SA Tools is a toolkit for modifying and extracting data from the Sonic
+    Adventure series of games
+  updated: '2019-11-27'
+  images:
+  - >-
+    https://github.com/sonicretro/sa_tools/raw/Docs/Documentation/images/project_manager_split_window.png
+  - >-
+    https://github.com/sonicretro/sa_tools/raw/Docs/Documentation/images/SADXLVL2_Editor_Overview.png
+
 - name: Sonic Robo Blast 2
   images:
   - https://www.srb2.org/wp-content/uploads/21-gfz1.png

originals/s.yaml

@@ -321,6 +321,22 @@
     genre:
     - Arcade
 
+- name: Sonic Adventure
+  names:
+  - Sonic Adventure 2
+  external:
+    wikipedia: Sonic Adventure
+  platform:
+  - Dreamcast
+  - GameCube
+  - PlayStation 3
+  - Windows
+  - Xbox 360
+  meta:
+    genre:
+    - Action
+    - Platform
+
 - name: 'Sonic Chronicles: The Dark Brotherhood'
   external:
     wikipedia: 'Sonic Chronicles: The Dark Brotherhood'

schema/originals.yaml

@@ -56,6 +56,7 @@ schema;platform:
     'Atari',
     'Commodore 64',
     'DOS',
+    'Dreamcast',
     'DS',
     'GameCube',
     'iOS',