Beta Release 2

MAJOR release containing a lot of improvements and bugfixes.

Please note that some changes between 0.8.x and 0.9.0 are breaking, that is teams will need to reinstall ftc-visionlib and well as update any opmodes to the newest versions. See the new samples in ftc-robotcontroller for examples.

Here are the major updates:

• Improved beacon detection significantly with the addition of the FAST and COMPLEX analysis methods. FAST is 1.2-3x faster, but lacks some features and only works well at close range (<1.5 feet). COMPLEX is slower and takes more battery power, but enables additional features and works well at a further range (1-4 feet).
• Added Vision extensions, which simplify code development. All you have to do is use a VisionOpMode (or linear / testable variant) and enable extensions such as a beacon analysis extension or a screen rotation compensation extension. Two are included out of the box.
• Added Linear OpMode support with the LinearVisionOpMode.
• Added an easy way to test your opmodes with the TestableVisionOpMode. It's exactly the same as a VisionOpMode, but functions differently under the hood. This new opmode "spoofs" a robot controller while allowing you to view what Vision sees.
• Added complete documentation for over 65% of the library
• Fixed several gaping bugs and addressed several teams' concerns