Make several driver improvements

[thangleiter]

Keysight 344xxA

• Add SCPI mnemonics ('MIN', 'MAX', 'DEF') to allowed values where allowed

Oxford Mercury IPS

• Allow setting current ramp rate and target

Oxford Triton

• Also assume magnet is not available if there is a communication timeout

Yokagawa GS200

Programs

• validate program times on multiples of the internal clock rate of 0.1s
• only add trigger parameter if monitor option is installed
• add get parser to count; allow setting to SCPI mnemonics 'MIN', 'MAX'.
• add hold(), pause(), cont() methods.

Instrument

• add parameters reading out device registers (status_byte, standard_event_register, extended_event_register, condition_register)
• implement hardware ramps:
  • ramp_mode parameter switches the mode of output sets between "JUMP", "SOFTWARE", and "HARDWARE". The last uses a program to ramp, software corresponds to the previous ramp implementation.
  • ramp_step, ramp_rate, ramp_blocking configure the way ramps behave.

[codecov]

Codecov Report

❌ Patch coverage is 59.45946% with 75 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.60%. Comparing base (ec90c0a) to head (622209a).
⚠️ Report is 74 commits behind head on main.

Files with missing lines	Patch %	Lines
...odes/instrument_drivers/yokogawa/Yokogawa_GS200.py	62.35%	64 Missing ⚠️
...ers/Keysight/private/Keysight_344xxA_submodules.py	28.57%	10 Missing ⚠️
src/qcodes/instrument_drivers/oxford/triton.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8025      +/-   ##
==========================================
+ Coverage   70.26%   70.60%   +0.33%     
==========================================
  Files         333      333              
  Lines       32169    32486     +317     
==========================================
+ Hits        22604    22936     +332     
+ Misses       9565     9550      -15     

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[jenshnielsen]

Thanks @thangleiter I think this looks good. Could you add a newsfragment with the new features and especially documenting the deprecations on the gs200.

[thangleiter]

Thanks @jenshnielsen. Added the newsfragments, hope the formatting is ok.

[jenshnielsen]

Thanks @thangleiter other than the inline comment this should be good to land