Implement a "Cost of Transmission" calculation

[malcolm-dsider]

Shall we implement a "cost of transmission" calculation modeled on the "cost of field gathering system" calculation? The total cost of transmission infrastructure is often required to be included in the total cost of a project.
Default behavior would be for no cost of transmission by default, but it would be included in all financial calculations (NPV, IRR, etc.) and reported when it was non-zero. So no change to any default behaviors and examples, except when explicitly called for.
Inputs would be:
Transmission System Capital Cost
o Description: Total transmission system capital cost per km (including interconnection and substation costs)
o Parameter type: Real
o Units: M$
o Allowable value range: [0,100]
o When required: Optional
o Default value: 1
Transmission System Length
o Description: Length of transmission system that must be built
o Parameter type: Real
o Units: N/A
o Allowable value range: [0,10]
o Default value: 0 (i.e., no transmission would be built)
Transmission System Capital Cost Adjustment Factor
o Description: Multiplier for built-in transmission system capital cost correlation
o Parameter type: Real
o Units: N/A
o Allowable value range: [0,10]
o Default value: 1

[softwareengineerprogrammer]

This was implemented as of the port that marks the start of the current repository's history, see

GEOPHIRES-X/src/geophires_x/Economics.py

Lines 1650 to 1656 in 7d1419b

	self.Cpiping = self.OutputParameterDict[self.Cpiping.Name] = OutputParameter(
	Name="Transmission pipeline costs",
	display_name='Transmission pipeline cost',
	UnitType=Units.CURRENCY,
	PreferredUnits=CurrencyUnit.MDOLLARS,
	CurrentUnits=CurrencyUnit.MDOLLARS
	)