Implement Basic Heat Dynamics in CLIMATE

[erematorg]

Implement foundational heat dynamics to serve as a basis for more comprehensive climate interactions in LP. This feature will simulate temperature propagation, heat sources, and temperature decay, providing the groundwork for realistic atmospheric simulation.

Tasks:

• [x] Define Grid and Temperature Parameters: Set up grid dimensions, cell size, and temperature-related constants.
• [x] Heat Sources: Implement logic for adding heat sources, defining heat intensity and decay rate.
• [x] Diffusion and Advection: Develop temperature diffusion and advection mechanics to simulate heat spread realistically across the grid.
• [x] Visualization: Utilize MultiMeshInstance2D to visualize temperature fields with color intensity, showing heat concentration across the grid.
• [x] Testing and Calibration: Conduct initial tests to verify heat propagation, diffusion, and decay behaviors, ensuring stability and visual coherence.

This might be suggests to some modifications, room for other solutions are welcome.

[M1thieu]

Basic Heat in preparation! Much more to do and I will share it once there's more progress!