Created equivalent pymapdl commands for the 3 scalar queries: MAG, PRES,
and TEMP. Examples have only been added for one of the three and tests
for none of them because my knowledge of APDL is not extensive enough.
Further work will require external input.

* Updated temperature example

Updated temperature example, but still need to fix temperature description

* Added Examples for querying TEMP, PRES,VOLT and MAG results

I have added examples to extract the Temperature, Pressure, Voltage and Magnetic Scalar Potential at node ID 1 of the solved model.

Also, I have corrected the _run_query(f"VOLT({n})" to _run_query(f"MAG({n})" for Magnetic Scalar Potential example

* Made changes due to Review

Removed the Print statements in Volt and Mag examples

* Updated temperature example

Updated temperature example, but still need to fix temperature description

* Added Examples for querying TEMP, PRES,VOLT and MAG results

I have added examples to extract the Temperature, Pressure, Voltage and Magnetic Scalar Potential at node ID 1 of the solved model.

Also, I have corrected the _run_query(f"VOLT({n})" to _run_query(f"MAG({n})" for Magnetic Scalar Potential example

* Made changes due to Review

Removed the Print statements in Volt and Mag examples

* Added Tests for field component values

Added tests for Temp, Pressure, Volt and Mag component values.