Energy mortar cleanup

[ebchin]

• Removed .clangd as it was build specific
• Clean up coupling scheme and mfem_tribol logic
• Clean up tests (single registration of coupling scheme instead of per-timestep, remove formulation_ready in tribol_energy_mortar_patch_LM). Needed a method to update penalty parameters in ContactFormulation to support this.
• Add a getMfemJacobian() method to return a single mfem::HypreParMatrix (no blocks) for penalty methods