Fix Nano 33 BLE drivers (#351)

Fix HTS221, LPS22HB and APDS9960 drivers and their examples for Arduino Nano 33 BLE:

* Update hts221_nano_33_ble.go
* Update lps22hb_nano_33_ble.go
* Update apds9960_nano_33_ble.go

hts221/hts221.go

@@ -21,6 +21,14 @@ type Device struct {
 	temperatureZero  float32
 }
 
+// New creates a new HTS221 connection. The I2C bus must already be
+// configured.
+//
+// This function only creates the Device object, it does not touch the device.
+func New(bus drivers.I2C) Device {
+	return Device{bus: bus, Address: HTS221_ADDRESS}
+}
+
 // Connected returns whether HTS221 has been found.
 // It does a "who am I" request and checks the response.
 func (d *Device) Connected() bool {
@@ -29,14 +37,6 @@ func (d *Device) Connected() bool {
 	return data[0] == 0xBC
 }
 
-// Configure sets up the HTS221 device for communication.
-func (d *Device) Configure() {
-	// read calibration data
-	d.calibration()
-	// activate device and use block data update mode
-	d.Power(true)
-}
-
 // Power is for turn on/off the HTS221 device
 func (d *Device) Power(status bool) {
 	data := []byte{0}