[WIP] Add electron energy equation to hybrid solver

[marcoacc95]

This PR adds the following changes:

• Added temperature and entropy multifabs to fluid container
• creates an electron fluid container specifically for the hybrid solver
• adds a pressure calculation function that uses ideal gas expression instead of adiabatic formula
• Electron pressure calculation now reads Te from the multifab in the electron fluid container
• calculate Ue for electron fluid after ampere current is calculated
• Added functions to set Ke on grid and to update Te
• current version does not have the electron energy equation solver (EEES) implemented yet
• will first use qdsmc from Topanga paper for EEES (see section III-A) in: https://doi.org/10.1063/5.0177132)

Work in progress:

• add particle container to be used only by the hybrid solver for the qdsmc fictitious particles used to solve for Te
• add functions to calculate Ke, distribute to fictitious particles and push them using Ue
• interpolate Ke from fictitious particles back to grid and update Te

Ideally a separate class "ElectronEnergyEqQDSMCSolver" that contains the needed fluid and particle containers should be used

############################################################################## Note: Field Wrappers added just to test momentarily