feat: added MPIFredholm1 and MPIMDC #306

Job	Run time
build (ubuntu-latest, 3.8, openmpi)	1m 46s
build (ubuntu-latest, 3.8, intelmpi)	1m 54s
build (ubuntu-latest, 3.9, openmpi)	1m 53s
build (ubuntu-latest, 3.9, intelmpi)	1m 54s
build (ubuntu-latest, 3.10, mpich)	1m 53s
build (ubuntu-latest, 3.10, openmpi)	1m 53s
build (ubuntu-latest, 3.10, intelmpi)	1m 57s
build (ubuntu-latest, 3.11, mpich)	1m 51s
build (ubuntu-latest, 3.11, openmpi)	1m 52s
build (ubuntu-latest, 3.11, intelmpi)	1m 51s
build (ubuntu-latest, 3.12, mpich)	1m 59s
build (ubuntu-latest, 3.12, openmpi)	1m 43s
build (ubuntu-latest, 3.12, intelmpi)	1m 46s
build (macos-latest, 3.8, mpich)	1s
build (macos-latest, 3.8, openmpi)	1s
build (macos-latest, 3.9, mpich)	1s
build (macos-latest, 3.9, openmpi)	1s
build (macos-latest, 3.10, mpich)	1m 43s
build (macos-latest, 3.10, openmpi)	2m 2s
build (macos-latest, 3.11, mpich)	1m 45s
build (macos-latest, 3.11, openmpi)	2m 2s
build (macos-latest, 3.12, mpich)	1m 43s
build (macos-latest, 3.12, openmpi)	1s
	33m 32s

Provide feedback