Input https for QM/MM CPMD

A QM/MM run requires a modified CPMD input http, some additional input https, and creates the normal CPMD output file and some new ones. The input http consists of a standard CPMD input with the QMMM keyword in the &CPMD section, a modified &ATOMS section and a mandatory &QMMM section. Furthermore three https for the classical code are needed (coordinates, topology and input http). These can be taken from previous fully classical simulations and have to be in Gromos format. Topologies and coordinates https created with the Amber[131] package are also supported. A converter to Gromos format[129] is available.