Add Helix PPII to ss.map for gmx do_dssp with dssp-4
Gromacs-2022 introduced support for dssp-4 (#4129 (closed)). That new version is also able to calculate polyproline helices (Helix_PPII). DSSP-4 uses "P" as the symbol for them (https://github.com/PDB-REDO/dssp/blob/trunk/src/dssp.cpp). As a consequence, it would need to be added to the share/top/ss.map with the color you prefer (I don't have a preference for that).
Thanks a lot