v1.8.0

• Resolved issue #26: Implemented full MPI support for distributed-memory parallel simulations using petsc4py.
  • Created EasyFEA/Utilities/_mpi.py with MPI utility functions (Concatenate_array, Sync_dofsValues).
  • Added rank0_only decorator and applied it to public functions in Display, PyVista, and Paraview modules.
  • Implemented simu._Gather and mesh.Gather functions to assemble distributed results on rank 0.
  • Added Folder.Rank_Dir function for rank-specific output directories.
  • Refactored the Paraview module to handle MPI results with per-rank .vtu files.
  • Improved PETSc solver options and pipeline; set GAMG as the default preconditioner.
  • Fixed memory leaks in the PETSc solver using PETSc.garbage_cleanup().
  • Updated the Newton–Raphson algorithm for MPI context.
  • Fixed bugs in simu.Save_Iter, simu.folder setter, _mpi.Concatenate_array, and solver.__Get_unique_dofs.
• Improved Sphinx documentation by adding a comprehensive how-to section.
• Merged PR #36 with updates: Improved examples/README.rst.
• Resolved issue #37: Added examples in docstrings.
• Created MeshIO.Merge function to combine multiple meshes.
• Added simu.Get_dofs function.
• Exported AlgoType in EasyFEA/__init__.py.
• Improved FeArray implementation.
• Improved simu._Solver_Apply_Dirichlet and simu.__Solver_Get_Dirichlet_A_x functions.
• Updated simu.Results_Set_Iteration_Summary behavior.
• Improved EasyFEA/Models/_phasefield.py and related phase-field examples.
• Improved mesher._Mesh_Generate.
• Refactored EasyFEA/Utilities/_tic.py to prevent memory issues.
• Removed the numba optional dependency.
• Fixed a bug in PyVista.Plot_Elements.