ENH: add `quantile` function with weights support #1597

Argument of type "tuple[int, ...] | Literal[1]" cannot be assigned to parameter "n" of type "int" in function "_quantile_hf" Type "tuple[int, ...] | Literal[1]" is not assignable to type "int" "tuple[int, ...]" is not assignable to "int" (reportArgumentType)

Lint: src/array_api_extra/_lib/_quantile.py#L52

Argument of type "Array | float" cannot be assigned to parameter "p" of type "Array" in function "_quantile_hf" Type "Array | float" is not assignable to type "Array" "float" is incompatible with protocol "Array" "__invert__" is not present "__matmul__" is not present "__and__" is not present "__or__" is not present "__xor__" is not present "__lshift__" is not present ... (reportArgumentType)

Lint: src/array_api_extra/_lib/_quantile.py#L40

Condition will always evaluate to False since the types "tuple[int, ...]" and "Literal[0]" have no overlap (reportUnnecessaryComparison)

Lint: src/array_api_extra/_lib/_quantile.py#L27

Cannot access attribute "ndim" for class "float" Attribute "ndim" is unknown (reportAttributeAccessIssue)

Lint: src/array_api_extra/_delegation.py#L947

"quantile" is not a known attribute of module "._lib._funcs" (reportAttributeAccessIssue)

Lint: src/array_api_extra/_delegation.py#L933

Operator "<" not supported for "None" (reportOptionalOperand)

Lint: src/array_api_extra/_delegation.py#L933

Operator ">=" not supported for "None" (reportOptionalOperand)

Test tests-py313