Create robotics.html for robotics and simulation developer room (#281)

A html file that contains a bit more content about the developer room for robotics and simulation

content/schedule/devrooms/robotics.html

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+<p>Welcome to the first edition of the Robotics and Simulation Developer room at FOSDEM,
+focused on core robotics libraries, frameworks, simulation tools, and open-source platforms.
+The selected talks will cover key tools used in Robotics,showcasing advancements and projects
+in the field. The half-day event will feature some full presentations and 2 lightning talk
+sessions, which will offer a platform for developers to share work and foster collaboration. </p>