Invalid type annotation on InputMolSpec

[xperrylinn]

The type annotation on the geometries on the attribute of the InputMoleculeSpec states Optional[List[Geometry]], however the @validator("geometries", pre=True) decorating the convert_xyz_to_geometry method has logic that converts the input
geometries to Geometry objects assuming the input as a list of file paths (geometries = [Geometry(xyz=xyz) for xyz in geometries]).

I encountered this issue running the following code:

InputMoleculeSpec(
    smile="F[P-](F)(F)(F)(F)F",
    count=60,
    name="PF6",
    charge_scaling=1.0,
    geometries=[Geometry(xyz="./data/PF6.xyz")],
    partial_charges=[1.34, -0.39, -0.39, -0.39, -0.39, -0.39, -0.39],
)

[xperrylinn]

Suggestion PR to update type annotation - https://github.com/orionarcher/pymatgen-io-openmm/pull/28/files