Initial submission of the new feature proposal for the 1-D (vertical) earth tube enhancement to EnergyPlus.

Changes were made to the NFP to include the comments made during the 5/3/23 technicalities meeting regarding the assumptions made about the earth tube node and contacting an expert on earth tubes from outside the development team.

Changes made to the NFP based on comments/conversation that took place over Slack on 5/11/23.

Modifications as a result of last technicalities call.

First drafts of the documentation in both the IO Ref and Eng Ref.  Change of a variable name to better reflect what it actually is.  Additions to the IDD.

this doesn't work, but i need to merge in other things

First successful build!

Correction of minor issue

Fixed an issue with a blank solution type.  It should now interpret the input when solution type is blank correctly (default back to Basic).  There should be no diffs in the ci results (hopefully).

Various minor issues fixed.  This now runs but the results are not correct for the vertical solution.

Working code with results that look like one would expect.  More testing and then unit tests and docs final edits to come.

Addition of two unit tests and a new regression test.  Minor documentation additions and tweaks.

Modifications to address review comments.

Used the wrong term to size vectors.  Should fix the issues with Linux debug errors.

Found a problem with one of the loops in the vertical algorithm, resulted from bad job moving stuff around.  Xcode was very forgiving, Ubuntu not so much.  This should make them both happy.