Fix plotting methods with new CartesianPoint implementation

[fhagemann]

Addressing #552: since #489, the plots for Box did not work properly (vertices were swapped and there is one line for sample surface, adding a Point to a Vector instead of a Vector to a Point).

This should work now.

import SolidStateDetectors.ConstructiveSolidGeometry as CSG
path_to_example_primitives_config_files = joinpath(dirname(dirname(pathof(SolidStateDetectors))), "examples", "example_primitive_files")
cfn = joinpath(path_to_example_primitives_config_files, "Box.yaml")
box = CSG.Geometry(T, cfn)
plot(box)

HOWEVER: all samplesurface plots appear empty in their default implementation, so something with auto_strokewidth or auto_markersize does not seems to work well. This still needs to be revisited.i

[fhagemann]

The latest commit to fix the Downgrade tests was needed because the newest versions of NearestNeighbors are not compatible with older versions of StaticArrays.

[fhagemann]

Just to have this documented: this PR also fixed the following issue:

SolidStateDetectors.cluster_detector_hits did not work if the positions are CartesianPoint
(which is now the output of Geant4).

MWE:

using SolidStateDetectors, Geant4, Unitful
sim = Simulation{Float32}(SSD_examples[:InvertedCoax])
source = IsotopeSource(90, 228, 0.0, 0.0, CartesianPoint(0.05,0,0.05))
app = G4JLApplication(sim, source)
t = run_geant4_simulation(app, 1_000)
tc = SolidStateDetectors.cluster_detector_hits(t, 20u"μm")

ERROR: MethodError: no method matching cluster_detector_hits(::Vector{Int32}, ::Vector{Quantity{…}}, ::Vector{CartesianPoint{…}}, ::Quantity{Int64, 𝐋, Unitful.FreeUnits{…}})
The function `cluster_detector_hits` exists, but no method is defined for this combination of argument types.

Closest candidates are:
  cluster_detector_hits(::AbstractVector{<:Integer}, ::AbstractVector{TT}, ::AbstractVector{<:StaticArraysCore.StaticArray{Tuple{3}, PT, 1}}, ::Union{Real, Unitful.AbstractQuantity{<:Real}}) where {TT<:Union{Real, Unitful.AbstractQuantity{<:Real}}, PT<:Union{Real, Unitful.AbstractQuantity{<:Real}}}
   @ SolidStateDetectors ~/Software/SolidStateDetectors.jl/src/ChargeClustering/ChargeClustering.jl:7
  cluster_detector_hits(::TypedTables.Table, ::Union{Real, Unitful.AbstractQuantity{<:Real}})
   @ SolidStateDetectors ~/Software/SolidStateDetectors.jl/src/ChargeClustering/ChargeClustering.jl:58

Stacktrace:
 [1] (::SolidStateDetectors.var"#213#214"{Quantity{…}})(evt::@NamedTuple{evtno::Int32, detno::Vector{…}, thit::Vector{…}, edep::Vector{…}, pos::Vector{…}})
   @ SolidStateDetectors ~/Software/SolidStateDetectors.jl/src/ChargeClustering/ChargeClustering.jl:63
 [2] iterate
   @ ./generator.jl:48 [inlined]
 [3] _collect
   @ ./array.jl:811 [inlined]
 [4] collect_similar
   @ ./array.jl:720 [inlined]
 [5] map
   @ ./abstractarray.jl:3371 [inlined]
 [6] cluster_detector_hits(table::TypedTables.Table{@NamedTuple{…}, 1, @NamedTuple{…}}, cluster_radius::Quantity{Int64, 𝐋, Unitful.FreeUnits{…}})
   @ SolidStateDetectors ~/Software/SolidStateDetectors.jl/src/ChargeClustering/ChargeClustering.jl:62
 [7] top-level scope
   @ REPL[7]:1
Some type information was truncated. Use `show(err)` to see complete types.

This is fixed now.