Update efficiency inputs for central CHPs

[kndehaan]

Description

This PR updates the efficiency inputs of central CHPs. This concerns inputs for electricity and heat efficiency.

The desired effect of setting ELECTRICITY efficiency of CHPs:

• It should update the electricity_output_conversion
• number_of_units and electricity_output_capacity should NOT be changed, since the total electricity output capacity should remain unchanged as this is a user input
• The typical_input_capacity should be actively changed to ensure that total electricity output capacity remains the same. This is different from the approach for power plants in Update efficiency inputs for power plants #3366, since the CHP nodes have attribute typical_input_capacity defined in the node file, whereas power plants have electricity_output_capacity defined.
• As a result of changed E-efficiency, fixed number of units and fixed total electricity output capacity, the (total) heat output capacity and heat production changes.
• The points above should be updated for both the HT and MT nodes

The desired effect of setting HEAT efficiency of CHPs:

• It should update the steam_hot_water_output_conversion for both HT and MT nodes
• This will not affect number_of_units, total electricity output capacity remains unchanged
• Therefore it's not necessary to set actively set other parameters with this input
• As a result of updated heat efficiency, (total) heat output capacity and heat production changes

For testing, it is advised to test the efficiency input on its own (does it work as it should) and in combination with other inputs such as ht/mt share, capacity and CCS. The combination of the inputs should give the expected result, which should be achieved with correct priorities and correct input content.

Type of change

• Bug fix
• New feature
• Enhancement
• Documentation

Checklist

• I have tested these changes
• I have updated documentation as needed
• I have tagged the relevant people for review

Related Issues

Partly closes #3337