Added optional parameter to spi_read_blocking

The "read bit" may be optionally set to 0.

Fix for issue #19

Comment change for i2c_read report data comment—no code changes.

bug fix: each stepper motor references the same info list

1.23

Bug fix: each stepper motor references the same info list

Fixed a missing await statement

1.22

Fixed a missing await instruction

Increased maximum number of steppers from 4 to 8

1.21

increased max number of steppers to 8

Fix for stepper continuous in reverse direction

1.20

Sonar enable/disable

Added sonar disable/enable commands

Merge pull request #17

Sonar disable/enable command added

Update i2c read to allow for read without write to register

This release resolved issue #14

Fixes reverse stepper motor bug

1.10

Fixes reverse stepper motor bug

Added stepper motor support

Merge pull request #11 from MrYsLab/stepper

Stepper motor support.