- Updated helios-core to v1.3.93

## PlantArchitecture
- Added `PlantArchitecture.getPlantModelBuildParameterNames()`, listing the build parameters a library plant model accepts
- Added `PlantArchitecture.getPlantBuildParameters()`, returning the build parameters a plant was built with
- Added `PlantArchitecture.getSeasonPeakLightExposureAtPoint()`, the light exposure at a point under the plant's most recent seasonal peak canopy, which persists through dormancy
- Build parameters can now set the berry size and count of "grapevine_VSP" and "grapevine_Wye" clusters and the panicle form of "sorghum"
- The "sorghum" library model can now tiller, set by the `tiller_count` build parameter
- Replaced the "sorghum" panicle with a procedural model that resolves every grain and its glumes
- Rebuilt the grapevine fruit cluster to match a mature Cabernet Sauvignon cluster
- The "apple" and "apple_fruitingwall" models now bear flowers and fruit on spurs and older wood, forming flower buds according to the light each node received the previous summer
- The "apple" and "apple_fruitingwall" models now have smaller leaves and fruit, recalibrated wood diameters, and fruit that hangs closer to vertical
- A leaf can now have no petiole by setting `petiole.length` to exactly 0, with `leaf.pitch` then giving its angle off the internode
- **Behavior change:** leaves of the "maize", "rice", "sorghum" and "wheat" models now have no petiole and leave the culm at the node
- **Behavior change:** the lowest internodes of the "sorghum" model now form a short crown at the soil surface
- A peduncle continuing a herbaceous culm now blends from the internode color to `peduncle.color` instead of changing color abruptly
- **Behavior change:** `setPlantBasePosition()` now moves a plant that already has shoots; previously it only changed the reported base position
- `getPlantBasePosition()` now returns the stored position of a plant with no shoots instead of raising
- Build parameter names are now checked against the list the native library declares, replacing a hand-maintained table that had fallen out of date
- Fractional values for counting build parameters (e.g. `num_scaffolds`, which was truncated) and NaN values now raise `PlantArchitectureError`
- Fixed spent terminal flower clusters of tree models flowering again every spring
- Fixed leaves on the uphill side of a tilted stem being turned upside down
- Fixed `fruit_gravity_factor_fraction` being undone for fruit on a peduncle far from vertical
- Fixed the `shoot_node_index` passed to a `setPhytomerCreationFunction()` callback being the shoot's final node count for the phytomers a shoot is created with
- `writePlantStructureUSD()` and `writePlantGrowthUSD()` now raise when a texture the plant uses does not exist, instead of writing a broken path

## EnergyBalance
- Added `EnergyBalanceModel.enableCanopyAirspaceStabilityCorrection()` and `disableCanopyAirspaceStabilityCorrection()`
- **Behavior change:** the canopy airspace model now corrects turbulent transport for atmospheric stability by default and reports `friction_velocity` and `canopy_stability_parameter` global data
- Fixed thermal emission being the full broadband εσT⁴ for an emitting radiation band with wavelength bounds, rather than the in-band share the radiation model emits
- Fixed emission using the primitives' emissivity for an emitting band with scattering depth 0, which the radiation model treats as black, overstating temperature
- **Behavior change:** `run()` now raises when the emitting radiation bands overlap or do not account for the blackbody spectrum once

## Radiation
- `runBand()` now records each band's scattering depth and wavelength bounds as `scattering_depth_<band>` and `wavelength_bounds_<band>` global data

## StomatalConductance
- **Behavior change:** `getBMFCoefficientsFromLibrary()` and `setBMFCoefficientsFromLibrary()` now raise for an unknown species, listing the valid names; previously they silently used Almond coefficients

## WeberPennTree
- Fixed the `<LeafShape>` tag in tree XML files being ignored, leaving the leaf shape uninitialized