Redrilling costs fixup; Don't display incorrect SAM-EM ITC [v3.9.40]

[softwareengineerprogrammer]

Description

Redrilling costs fixup

Add Redrilling costs output parameter with tooltip text: "Total redrilling costs over the Plant Lifetime are calculated as (Drilling and completion costs + Stimulation costs) × Number of times redrilling. The total is then divided over Plant Lifetime years to calculate Redrilling costs per year.". OPEX line items now add up to the displayed total for EGS with redrilling (covered by unit test).

Don't display incorrect SAM Economic Models ITC

#88

Workaround for NREL#404: skip displaying the ITC value for SAM Economic Models because it can be/probably is usually mathematically inaccurate, and even if it's not, it's redundant with the cash flow profile and also misleading/confusing/wrong to display it as a capital cost since it is not a capital expenditure.

For example Fervo_Project_Cape-4 displays ITC as $-688.54M but the probably-corresponding line item in cash flow is $791,817,681:

Testing & Verification

Redrilling costs fixup

1. Updated affected existing unit tests - Fervo_Project_Cape-4 and example13
2. test_redrilling_costs - verify redrilling costs are displayed in opex and opex line items add up to total, both with and without total capital costs specified
3. Web interface
   1. 
   2. With Total Capital Costs specified:

SAM ITC

1. Regenerated impacted example unit tests: Fervo_Project_Cape-4, example_SAM-single-owner-PPA, & example_SAM-single-owner-PPA-2. Their results remain the same except for the removal of the Investment Tax Credit output field.
2. Web interface: Capital Costs section with same parameters as above, ITC is no longer displayed: