Update daqmx examples to use AnalogWaveform

[mikeprosserni]

What does this Pull Request accomplish?

This updates the nidaqmx examples to use the new task.read_waveform() and task.write_waveform() methods.

I also changed how the run and stop buttons work. Trying to use panel.get_value("run_button", False) is just not reliable, so I changed it to use panel.get_value("is_running", False) instead, and the buttons now explicitly set is_running when clicked.

I also improved error handling. Now, instead of the script ending when a DAQ error happens, the script loops back to the stopped state, with a message (taking the place of the graph) saying what the error is, so that the user can change the configuration and click Run again.

I also added filters on the channel selectors so that only compatible channels are presented.

I also made some changes to improve consistency between the three daq examples.

Why should this Pull Request be merged?

AB#3353661

What testing has been done?

Ran the three examples:

examples/nidaqmx/nidaqmx_analog_input_filtering/nidaqmx_analog_input_filtering.py

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examples/nidaqmx/nidaqmx_analog_output_voltage/nidaqmx_analog_output_voltage.py

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examples/nidaqmx/nidaqmx_continuous_analog_input/nidaqmx_continuous_analog_input.py

[github-actions]

Test Results

   10 files  ±0     10 suites  ±0   25s ⏱️ ±0s
  256 tests ±0    256 ✅ ±0  0 💤 ±0  0 ❌ ±0 
2 510 runs  ±0  2 510 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 725a615. ± Comparison against base commit b17e813.

♻️ This comment has been updated with latest results.