Dashing migration (#11)

* Refs #6007. Move example to rclc and rclcpp folders.

* Refs #6607. Add .gitignore.

* Refs #6007. Add rcl int32_publisher example.

* Refs #6007. Add rcl int32_subscriber example.

* Refs #6130. Modify rcl int32_publisher and int32_subscriber examples.

* Refs #6130. Check Clang-Tidy installation for examples.

* Refs #6130. Rename rclc examples.

* Refs #6130. Rename rclcpp examples.

* Refs #6130. Fix packages.xml.

* Refs #6130. Fix rclcpp examples warnings.

* Group demos executables in packages.

* Fix rcl demo implementation.

* Add rcl error print and fix subscription.

* Feature/actions (#14)

* Add services examples

* Refactor pub/sub examples

* Add action server example

* Action server updated

* Add action client example

* Adjust action client and server demos

* Indentation fix

* Ensure finalizing elements

* Name typo

* Ensure fini elements

* Using RCL_MS_TO_NS function in rcl_wait

* Style consistency

* Independent action client event checking

* Style fix

* Error handling

* Typo

* Added multinode example

Check required

* Sleep to wait matching comment

* Indentation fix

*  Return codes removed

* Feature/demos cleanup (#15)

* Refactor add two ints requester

* Style refactor and macro rc check

* Typos

* Typos

* rc variable independace

* Typo

* Feature/configuration (#13)

* Add configuration examples.

* Added configuration examples

* Client key API

* Fix

* Examples cleanup ad error code check

* Added error check macros

* Indentation fix

* Indentation fix

* Indentation fix

Co-authored-by: Borja Outerelo <borjaouterelo@gmail.com>

* Fix some warnings. (#16)

* Guard condition example (#17)

* Cleaning subscriptor code (#18)

* Change Apache license identifier in package.xml files.

* Apply suggestions from code review.

Co-authored-by: Borja Outerelo <borjaouterelo@gmail.com>
Co-authored-by: Pablo Garrido <pablogs9@gmail.com>

Author: 3 people

.gitignore

@@ -0,0 +1,217 @@
+# Created by https://www.gitignore.io/api/c,qt,c++,ros,cmake,qtcreator
+# Edit at https://www.gitignore.io/?templates=c,qt,c++,ros,cmake,qtcreator
+
+### C ###
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+### C++ ###
+# Prerequisites
+
+# Compiled Object files
+*.slo
+
+# Precompiled Headers
+
+# Compiled Dynamic libraries
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+
+# Executables
+
+### CMake ###
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+### CMake Patch ###
+# External projects
+*-prefix/
+
+### Qt ###
+# C++ objects and libs
+
+# Qt-es
+object_script.*.Release
+object_script.*.Debug
+*_plugin_import.cpp
+/.qmake.cache
+/.qmake.stash
+*.pro.user
+*.pro.user.*
+*.qbs.user
+*.qbs.user.*
+*.moc
+moc_*.cpp
+moc_*.h
+qrc_*.cpp
+ui_*.h
+*.qmlc
+*.jsc
+Makefile*
+*build-*
+
+# Qt unit tests
+target_wrapper.*
+
+# QtCreator
+*.autosave
+
+# QtCreator Qml
+*.qmlproject.user
+*.qmlproject.user.*
+
+# QtCreator CMake
+CMakeLists.txt.user*
+
+# QtCreator 4.8< compilation database
+
+# QtCreator local machine specific files for imported projects
+*creator.user*
+
+### QtCreator ###
+# gitignore for Qt Creator like IDE for pure C/C++ project without Qt
+#
+# Reference: http://doc.qt.io/qtcreator/creator-project-generic.html
+
+
+
+# Qt Creator autogenerated files
+
+
+# A listing of all the files included in the project
+*.files
+
+# Include directories
+*.includes
+
+# Project configuration settings like predefined Macros
+*.config
+
+# Qt Creator settings
+*.creator
+
+# User project settings
+*.creator.user*
+
+# Qt Creator backups
+
+### ROS ###
+devel/
+logs/
+build/
+bin/
+lib/
+msg_gen/
+srv_gen/
+msg/*Action.msg
+msg/*ActionFeedback.msg
+msg/*ActionGoal.msg
+msg/*ActionResult.msg
+msg/*Feedback.msg
+msg/*Goal.msg
+msg/*Result.msg
+msg/_*.py
+build_isolated/
+devel_isolated/
+
+# Generated by dynamic reconfigure
+*.cfgc
+/cfg/cpp/
+/cfg/*.py
+
+# Ignore generated docs
+*.dox
+*.wikidoc
+
+# eclipse stuff
+.project
+.cproject
+
+# qcreator stuff
+
+srv/_*.py
+*.pcd
+*.pyc
+qtcreator-*
+*.user
+
+/planning/cfg
+/planning/docs
+/planning/src
+
+*~
+
+# Emacs
+.#*
+
+# Catkin custom files
+CATKIN_IGNORE
+
+# Colcon custom files
+COLCON_IGNORE
+
+# End of https://www.gitignore.io/api/c,qt,c++,ros,cmake,qtcreator