Add examples

[roosre]

Description of the modifications

Add the following examples:

• [x] #691
• [x] #692
• [x] #695
• [x] #677
• [ ] post-processing (link to PyDPF Composites)
• [ ] HDF5 Interface: import and export
• [ ] Definition of Imported Plies
• [x] Example for Imported Solid Model
• [x] #505 (class40 examples becomes MAPDL example)
• [x] #676
• [ ] #702
• [ ] #707

At the very end:

• [ ] Sort examples

Useful links and references

No response