Per-step hook for re-trying moves

[thopkins32]

Summary

Adds helper plans to move flaky motors.

Main additions

• mv_with_retry plan for one-off moves a positioner or motor
• one_nd_step_with_retries is a "per-step hook" that standard Bluesky scans support
• scan_with_retry plan takes in a Bluesky scan plan and adds the one_nd_step_with_retries hook.

Examples

Single moves

RE(mv_with_retry(my_motor, 0.5, num_retries=100))
RE(mv_with_retry(motor1, 0.5, motor2, 10.1, num_retries=3))

Scans

from bluesky.plans import scan, list_scan

uid = RE(scan_with_retry(list_scan, motor1, [1, 5, 3, 2], motor2, [4, 1, 2, 9], num_retries=5))
uid = RE(scan_with_retry(scan, motor1, 1, 5, 0.1, motor2, -5, 5, 1, num_retries=5))