Add interface for Thermal costs, fix wrong values in GUI

[flomnes]

Advantages

• Better separation of responsabilities, remove a lot of if..else
• Make sure that if costgeneration = setManually (legacy behavior), no new code is executed

Cons

• The caller needs to call function ThermalCluster::getCostProvider first

GUI

Previously, the formula used for modulation columns was "netCost = modulation * modulation * originalCost" for market bid & marginal costs. We fix this formula to "netCost = modulation * originalCost"

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
75.6% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud