Created SaveAreaDatabase service

[DivyamChandalia]

Pull Request Description

Overview:
Enhances zed_interfaces by adding GetAreaDatabase, a new service facilitating area database retrieval via the ZED ROS 2 wrapper.

Changes:

• Added GetAreaDatabase service definition to zed_interfaces.
• Implemented service call handling in zed_ros2_wrapper to process requests and interact with ZED SDK.

Details:

• New Service (GetAreaDatabase):

  • Defined in zed_interfaces for ROS 2 nodes to request ZED camera area databases.
  • Enhances interaction capabilities for localization and mapping tasks.

• Implementation in zed_ros2_wrapper:

  • Handles requests, utilizes ZED SDK for database retrieval, and sends responses to clients.

Usage:

• Enables dynamic area database retrieval from ZED cameras in ROS 2 applications.
• Enhances functionality for spatial awareness and mapping tasks.

Impact:

• Improves ZED camera integration in ROS 2, enhancing robotic perception and localization.
• Standardizes access to area databases, promoting interoperability across projects.

Testing:

• Tested on Stereolabs ZED Box with ZEDX stereo camera.
• Test environment used Isaac ROS docker container running Ubuntu 22.04.

Contributor Notes:

• Aligns with efforts to expand ZED ROS 2 wrapper functionality.
• Welcomes feedback for further optimization and refinement.