Add a run_program to the pmac

[noemifrisina]

Fixes #650

Add a run_program to the PMAC device for I24, that sets the pmac_string to the program number and then waits for the collection to be done by checking the scanstatus PV value. It only returns when this PV returns 0.

Instructions to reviewer on how to test:

1. Run tests

Checks for reviewer

• Would the PR title make sense to a scientist on a set of release notes
• If a new device has been added does it follow the standards
• If changing the API for a pre-existing device, ensure that any beamlines using this device have updated their Bluesky plans accordingly
• Have the connection tests for the relevant beamline(s) been run via dodal connect ${BEAMLINE}

[d-perl]

lgtm

[DominicOram]

Could: Can you not just use wait_for_value here?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.26%. Comparing base (cfcea2e) to head (24ef698).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #661      +/-   ##
==========================================
+ Coverage   94.24%   94.26%   +0.02%     
==========================================
  Files         110      110              
  Lines        4360     4376      +16     
==========================================
+ Hits         4109     4125      +16     
  Misses        251      251              

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