- 4-Port Parameter added

- introduce multiple measurement sets in the dut_measuremets
- create one plot per measurement set for time traces
- analysis is showing all sets against temperature/humidity

All notions of VNA, magnitude and phase in prototype.py and the GUI have been
removed and generalised.
This is just refactoring, no functional change. However, the syntax of the
config file has been adapted.

- implementation of data logger into test stand software as alternative to model 710
- configuration vy test_stand_parameter.json

env_cond_sensors key in jsonfile update to ext for requesting information from external sensors for measurement instrument chamber

- subplot 5 modified that heater activity, external sensors and sensors of climate - chamber from instrument chamber can be display
- request of instrument chambers added
- configurable option in json file for selecting parameter in subplot5

Debug Complete

bug fixes import teststand json file
time unit configuration switched from ext_sensor_param.json to test_stand.json
host names of meas_equipment devices replaced by IP adress -> reason: otherwise no connection possible
batch file for program start included -> Path in batch must be corrected to location of program

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after test with long term run version should be tagged

data logger ip for external environmental sensor (temperature, humidity, air pressure) added to config file

modify module for measurement plot for external sensors
add module for post
modifiy prototype for external sensors and error handling of communcation errors of VNA
add regresson to post plot with basich control elements

- Load VNA config (and calibration) from file.
  The *.znxml file has to be prepared in advance and saved on the VNA.
  It needs to set the VNA to CW mode and single sweep.
- Trigger single sweep and wait for it to complete
- Fix trace definitions

- Frequency is a new parameter in json file
- Set wide acceptance ranges of other test stand parameters for demo purposes