TBLIST Enhancements

[da1910]

In #1074 there is a request for enhancements to TBLIST to include to_list, to_array and to_dataframe methods.

There are also other bits of information that are only currently available by parsing the text response from TBLIST, see https://github.com/pyansys/pymapdl/blob/4ad745e7ce2e6883b5425cd241fc14c73c828b74/src/ansys/mapdl/core/_materials/_nonlinear_models/anisotropic_elasticity.py#L155-L174 as an example. There are two different ways to specify the coefficients of an ANEL model, and the only way to know which was used is to check for the presence of the word flexibility in the text output.

If we are planning to enhance the output of TBLIST then we should think about what the format returned should be, and we should try and add a way to query other material meta-information, as far as I can see this is not available by any of the *GET methods?

[germa89]

Hi @da1910

I agree having this sort of metadata will be very useful. Unfortunately I do not have much time to implement that.
I could do the to_list, to_array, etc methods. It seems to me that extracting all the metadata is going to require considerable amount of manpower.

On the other side, we do have access to the MAPDL database (DB command I believe). Maybe querying the server directly will be more interesting/useful/fast?

Pinging @FredAns for further opinion on extracting material information from MAPDL database.