Fixes in households - no model functionalities for MVP are affected.

[petertue]

• vehicleScaling1 and scaling2 now called diesel and electric
• input configs voor eerste household show case
• slightly improved f_connecttochild in gridConnection and GCHouse. @creating mobility trackers. Houses can now have EVs.
• Operate flex assets werkt nu ook in huishoudens
• charging werkt nu ook in huishoudens <-- dom laden
• organized gridNode agent and added graph
• in energyAsset f_updateElectricityFlows: added update of the powerfraction (was missing) -added mileage to vehicles
• EA toString includes now also de power (when in a gridconnection open de c_energyAssets to see current status of all assets at once)
• added variable in gridconnection: v_tempSetpoint_degC die snachts op 10 wordt gezet en overdag op 20 (hardcoded atm)