Support StrEnums in Enum Construction

[max-muoto]

Description

Right now, if you want to create Polars enum from a StrEnum you're required to first list convert it:

import enum

class PythonEnum(enum.StrEnum):
    A = "A"
    B = "B"
    C = "C"

e = pl.Enum(list(PythonEnum))
df = pl.DataFrame({"Col 1": ["A", "B", "C"]}, schema={"Col 1": e})

While easy enough, I don't see any reason why direct creation of Polars Enums from Python enums shouldn't be supported:

import enum

class PythonEnum(enum.StrEnum):
    A = "A"
    B = "B"
    C = "C"

e = pl.Enum(PythonEnum)
df = pl.DataFrame({"Col 1": ["A", "B", "C"]}, schema={"Col 1": e})

[Julian-J-S]

why not go one step further and use the python enum directly? (should be possble?) 😄
This works for exmpale using python str / int / float

pl.DataFrame(
    {"a": [1], "b": [1], "c": [1]},
    schema={
        "a": pl.String,
        "b": str, # <<<<<
        "c": float, # <<<<<
    },
    strict=False,
)