During the process of simulating IC engine based cogeneration for CHS a series of bugs were detected
in the code. This commit include following changes:
1. Control file was missed if upgrade mode is 2 and upgrade type is 10. The reason was a condition
of IF loop. (FIXED)
2. In a case that IC engine fuel is NG, the Results file reporting a divide by zero. (FIXED)
3. ibid for Results_up (Fixed)
4. The condition for eligibility of houses for IC engine based cogeneration upgrade is expanded
to cover all houses that had a mechanical room.