Add openpilot tools

SConstruct

@@ -70,6 +70,10 @@ AddOption('--minimal',
           default=os.path.islink(Dir('#rednose/').abspath), # minimal by default on release branch (where rednose is not a link)
           help='the minimum build to run openpilot. no tests, tools, etc.')
 
+AddOption('--nosr',
+          action='store_true',
+          help="don't build the screen recorder")
+
 ## Architecture name breakdown (arch)
 ## - larch64: linux tici aarch64
 ## - aarch64: linux pc aarch64