Refactor thermal library to use macros

[matthew-kapp]

Checklist

• Appropriate tests were added
• Any code changes were done in a way that does not break public API
• All documentation related to code changes were updated
• The new code follows the
  contributor guidelines, in particular the SciML Style Guide and
  COLPRAC.
• Any new documentation only uses public API

Additional context

The following components were changed to make use of the macro syntax:

• ThermalCollector in src/Thermal/HeatTransfer/ideal_components.jl
• HeatPort in src/Thermal/utils.jl