Improve AccumulatorArgs after transition to all udafs

[alamb]

          The end state in my mind now.

pub struct AccumulatorArgs<'a> {
    /// Keep, this is return type, the name might be quite confusing.
    pub data_type: &'a DataType,

    /// We might only need one of `schema` or `dfschema`. It is likely we keep `dfschema`, since we can get `schema` from it.
    pub schema: &'a Schema,

    pub dfschema: &'a DFSchema,

    /// Keep
    pub ignore_nulls: bool,

    /// Convert to physical sort exprs instead
    pub sort_exprs: &'a [Expr],

    /// Keep
    pub is_reversed: bool,

    /// We might able to get the name from expressions
    pub name: &'a str,

    /// Keep
    pub is_distinct: bool,

    /// Get the type from schema and expressions
    pub input_type: &'a DataType,

    /// Convert to physical expressions
    pub input_exprs: &'a [Expr],
}

Originally posted by @jayzhan211 in #11666 (comment)

[xinlifoobar]

take

[alamb]

FYI @jayzhan211

[jayzhan211]

There is #11739 that works on name by @lewiszlw , @xinlifoobar I think you can work on input_types