Add component data structures

[pelesh]

Description

Create data structures for each component model type that stores all modeling data.

@alexander-novo @reid-g @nkoukpaizan @shakedregev

Proposed changes

The data structures contain connectivity information and model parameters for each component model type and as such can be understood as meta models. For example, system matrix sparsity pattern and allocations can be done with information stored in these data structures without instantiating component or system models.

The idea is that these data structures are populated by the GridKit input. GridKit then operates on that data to allocate workspaces and instantiate and parametrize component models.

In this PR:

• Data structures for buses, branches, loads, and Genrou models are added.
• Each component model type has a constructor that uses data structure instead of parameter list.
• Phasor dynamics examples are updated to use data structures and simplified component constructors.

Checklist

• All tests pass.
• Code compiles cleanly with flags -Wall -Wpedantic -Wconversion -Wextra.
• The new code follows GridKit™ style guidelines.
• There are unit tests for the new code.
• The new code is documented.
• The feature branch is rebased with respect to the target branch.

Further comments

This is first stage in implementing meta models in GridKit. The objective of this PR is to have a matching data structure for each component model type.

[abirchfield]

Works for me

[shakedregev]

Approved pending me figuring out how to build.

[shakedregev]

The following tests FAILED:
13 - AdjointSens (SEGFAULT)
Revoking approval.

[shakedregev]

Please fix test 13
13 - AdjointSens (SEGFAULT)

[superwhiskers]

@shakedregev is your sundials version from the develop branch? this is probably the reason for the segfault. see this comment

[shakedregev]

@shakedregev is your sundials version from the develop branch? this is probably the reason for the segfault. see this comment

Can I get some more details on how to fix this? I tried both locally and on Frontier to install sundials on develop and failed. Pretend I am a bot that only knows how to run commands in the terminal and tell me the steps to get this to work. Assume I have cloned GridKit and spack. Alternatively, if I installed sundials@develop with spack, tell me what I should set my directories to in ccmake, because it didn't find it when I put where I think it installed it.

[shakedregev]

Tests pass. The functionality of the code is good. Hopefully the guideline fixes are not too difficult.