[GeoMechanicsApplication] Implement well constitutive behaviour for line thermal element

[mnabideltares]

Description:

To enhance our computational model for simulating high capacity heat storage systems, we need to implement a thermal "well/filter" element on top of the existing thermal line element. The thermal filter element will enable us to model the behavior of heat storage under the ground, accounting for their heat exchange processes. This addition is crucial for achieving realistic simulations of heat storage systems and optimizing their performance.

Acceptance Criteria:

1. Identify the appropriate mathematical formulation for the thermal filter element.
2. Develop the necessary code changes to integrate the thermal filter element with the existing thermal line element
3. Add test cases to validate the accuracy and stability of the implemented thermal filter element
4. Documentation for the test cases