Build

• deps: module update (#992)
• go, deps: switch to Go 1.19 and update modules (#1008)
• style: switch to gofumpt and add linters (#1009)

Doc

• roadmap: remove file ROADMAP.md after creating issues (#1005)

Dragonboard

• fix example and documentation (#977)

Gpio

• hcsr04: add driver for ultrasonic ranging module (#1012)

I2c

• PCA9685, adafruit, adafruit2327, adafruit2348: clean up architecture and fix init (#1021)

Jetson

• PWM: fix set period (#1019)

Joystick

• core: replace sdl with 0xcafed00d/joystick package (#988)

Sphero

• Add support for calibration

System

• gpio: add edge polling function (#1015)

Test

• all: substitude assert.Nil by assert.NoError if useful (#1016)
• all: substitude assert.Error by assert.ErrorContains (#1014, #1011)
• all: switch to test package stretchr testify (#1006)
• gpio, aio: cleanup helper_test (#1018)