feat: add StringStamped message which will be used to transmit data a…

…s JSON

dc_interfaces/CMakeLists.txt

@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.8)
+project(dc_interfaces)
+
+
+set(dependencies
+  builtin_interfaces
+  rosidl_default_generators
+  std_msgs
+)
+find_package(ament_cmake REQUIRED)
+foreach(Dependency IN ITEMS ${dependencies})
+  find_package(${Dependency} REQUIRED)
+endforeach()
+
+
+rosidl_generate_interfaces(
+  ${PROJECT_NAME}
+  "msg/StringStamped.msg"
+  DEPENDENCIES "${dependencies}"
+)
+
+ament_package()

dc_interfaces/msg/StringStamped.msg

@@ -0,0 +1,4 @@
+std_msgs/Header header
+
+string data
+string group_key

dc_interfaces/package.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>dc_interfaces</name>
+  <version>0.6.1</version>
+  <description>Package containing data collection interfaces.</description>
+  <maintainer email="d.bensoussan@proton.me">David Bensoussan</maintainer>
+  <license>MPL-2.0</license>
+
+  <buildtool_depend>ament_cmake</buildtool_depend>
+  <build_depend>builtin_interfaces</build_depend>
+  <build_depend>rosidl_default_generators</build_depend>
+  <exec_depend>rosidl_default_runtime</exec_depend>
+
+  <member_of_group>rosidl_interface_packages</member_of_group>
+
+  <export>
+    <build_type>ament_cmake</build_type>
+  </export>
+</package>