HP Basic control strategies

The basic control strategies for heat pumps come in 3 different variations, which allow for different styles of control, depending on the actual heat pump installation.

• https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3097231361

• https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3089369277

• https://hysopt.atlassian.net/wiki/spaces/HRM/pages/3089369342