Inital commit for Rust library. WiP

[jhelovuo]

This is a driver implementation for the BrickPi3 in the Rust programming language. Still somewhat a work in progress, but the two bundled examples are tested to work.

[johnisanerd]

Really cool and thanks for the PR @jhelovuo ! No one on our team has any experience with Rust; can you link a good getting started guide so we can test this out?

[jhelovuo]

Hi @johnisanerd, I used https://www.rust-lang.org/en-US/ docs to study Rust.

Quick test instructions to replicate my tests:

• Use e.g. Raspbian Linux on Raspberry Pi
• Install current Rust tools from rust-lang.org by the default install instructions given there. This should give you rustc and cargo commands.
• cd BrickPi3/Software/Rust/brickpi3
• cargo build will fetch the dependencies and build the library
• cargo build --example info should build the "info" example, which is similar to the C++ version. Executables are produced in target/debug/examples by default.
• cargo build --example motors should give a working "motors" example program.
• Sensor code is completely untested. It may work by accident.

[jhelovuo]

Recent improvements:

• Fixed build "script" to build successfully also on Raspbian with latest stable rustc (1.22.1)
• Tested devices: -- motors, including encoders -- EV3 IR remote -- EV3 color sensor
• added example program sensors_ev3 to test sensors Currently I have only the hardware included in the base EV3 kit, so I need more sensors to test if they work.
• rebased some commits to simplify history

[CleoQc]

No one has any experience with Rust, but we do appreciate the support. It took forever to get this in! My apologies. @jhelovuo