Demonstrate derived field with EoS

[hyschive]

Tasks

• [x] Add a temperature derived field in GAMER for libyt by calling Hydro_Con2Temp()
• [x] Compute gas temperature in the ClusterMerger test problem and compare with the post-processing script gamer/example/test_problem/Hydro/ClusterMerger/yt_script/plot_slice-z.py
• [x] If possible, compute temperature/pressure/entropy in the CCSN simulations. (We tested entropy instead)

Check on libyt derived function functionality

• [x] Compare temperature calculate through EoS libyt derived function and post-processing temperature output directly by gamer.

Related tasks

• 18

[cindytsai]

@hyschive Do we still need this?

[hyschive]

@cindytsai I think we can close it since computing entropy in the CCSN simulation already demonstrates it. Do you agree?

[cindytsai]

@hyschive yes!