Thin-edge packaging only includes the tedge executable file giving access to the agent, mappers and plugins using symlinks.

However, this is not the case in development where executable files are built for the agent, the mapper and the plugin.
This is misleading and consume resources for nothing.

I propose to

• remove main.rs for the agent and the mapper, and all the plugins that can be launched using a symlink on tedge.
• create the appropriate symlinks using just