Add aruco detector and hik camera driver source

hik_camera_ros2_driver/launch/hik_camera_launch.py

@@ -0,0 +1,57 @@
+import os
+
+from ament_index_python.packages import get_package_share_directory
+from launch import LaunchDescription
+from launch.actions import DeclareLaunchArgument, SetEnvironmentVariable
+from launch.substitutions import LaunchConfiguration
+from launch_ros.actions import Node
+
+
+def generate_launch_description():
+    # Get the package directory
+    bringup_dir = get_package_share_directory("hik_camera_ros2_driver")
+    params_file = LaunchConfiguration("params_file")
+    log_level = LaunchConfiguration("log_level")
+
+    # Create the launch configuration variables
+    stdout_linebuf_envvar = SetEnvironmentVariable(
+        "RCUTILS_LOGGING_BUFFERED_STREAM", "1"
+    )
+
+    colorized_output_envvar = SetEnvironmentVariable("RCUTILS_COLORIZED_OUTPUT", "1")
+
+    # Declare the launch arguments
+    declare_params_file_cmd = DeclareLaunchArgument(
+        "params_file",
+        default_value=os.path.join(bringup_dir, "config", "camera_params.yaml"),
+        description="The joystick configuration file path",
+    )
+
+    declare_log_level_cmd = DeclareLaunchArgument(
+        "log_level", default_value="info", description="log level"
+    )
+
+    start_hik_camera_cmd = Node(
+        name="hik_camera_ros2_driver",
+        package="hik_camera_ros2_driver",
+        executable="hik_camera_ros2_driver_node",
+        parameters=[params_file],
+        arguments=["--ros-args", "--log-level", log_level],
+        output="screen",
+    )
+
+    # Create the launch description and populate
+    ld = LaunchDescription()
+
+    # Set environment variables
+    ld.add_action(stdout_linebuf_envvar)
+    ld.add_action(colorized_output_envvar)
+
+    # Declare the launch arguments
+    ld.add_action(declare_params_file_cmd)
+    ld.add_action(declare_log_level_cmd)
+
+    # Add the actions to launch the nodes
+    ld.add_action(start_hik_camera_cmd)
+
+    return ld