BMP180 pressure and temp sensor support.

[MrSpock]

Hi,
I needed support for BMP180 and I needed to lear Rust. Here is result :)
Tested on my real BMP180 against other library (same results) and test scenario based on BMP180 documentation.

[Kixunil]

I'm afraid you missed #27. But shouldn't be much of a problem.

[MrSpock]

Yes, definitely I missed that one :) Single file so yes - no problem to extract that to separate crate.

[posborne]

Awesome, thanks for the contribution. Been busy lately, but hoping to get back to being a better maintainer here or adding other maintainers that will be able to drive things more actively.

[tadeegan]

Did you ever extract this to its own crate? I'm interested in using it :D.

[Kixunil]

As I wrote in #27, I've started working on it.

What needs to be done:

• Decide where to put the sensor traits (Thermometer, Accelerometer...)
• Create and publish the crate for the traits
• Who should be the owner (of crates, repo)?
• Licenses
• Fill info into Cargo.toml for each sensor and publish them.
• Merge Removed sensors, so they can be put in separate crate #28

[posborne]

Closing this as we are moving away from adding additional sensors/traits to this crate in favor of building those on top of embedded-hal traits.