Allow calling plumed_cmd_safe_nothrow without an exception handler

with passing a constant flag == 0, the check on const correctness
should be skipped

Optimization in how functions are constructed (setup might be slightly faster with complicated functions).

Using unique_ptr in ves module

See 9b50841c

Include plumed- in the fork name

Knowing which PLUMED version has patched GROMACS is potentially valuable information for GROMACS and PLUMED users and developers troubleshooting their runs.

See 9b50841c

Include plumed- in the fork name

Let GROMACS runtime logs show PLUMED patch active

plumed-patch is the script-only version used when cross compiling

See 074ce219

See #737

Knowing which PLUMED version has patched GROMACS is potentially valuable information for GROMACS and PLUMED users and developers troubleshooting their runs.

Passing tests