Simulated vehicles around user

Thanks in large part to our awesome developer community, we now have a working simulated environment that creates drones on demand around the user.

While in a simulation, Mission Control always makes sure there are at least 3 drones within 1 km of you, ready to take on missions.

This will allow developers to build and test applications powered by DAV without having to invest in any hardware first.

Some of the ⭐️s that have helped make this release happen include:

• Randomizing drone location: @Govorin and @shaylavi
• Drone details: @malltshik, @riktimmondal, @ankmachine, @JamesDimi, @cg-cnu
• Community building: @matthewfitch23, @JibranKalia, @Logan1x, @copel0, @freethewhat
• Foundational work: @avivklas

Finally, a huge thank you goes to @cg-cnu for helping build the developer community! You rock!

Any feedback? Join our gitter contributors channel.