Support casting temporal types to dictionary

[wjones127]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

Hit this line when trying to cast date32 to dictionary(_, date32):

arrow-rs/arrow-cast/src/cast.rs

Line 3572 in ab56693

"Unsupported output type for dictionary packing: {dict_value_type:?}"

Describe the solution you'd like

Update can_cast_types to return false for types cast_to_dictionary doesn't support, like temporal types, floats, and bools.

arrow-rs/arrow-cast/src/cast.rs

Line 81 in ab56693

pub fn can_cast_types(from_type: &DataType, to_type: &DataType) -> bool {

Describe alternatives you've considered

Fill in at least temporal types, floats and bools in the cast_to_dictionary method. But it sounds like we don't intend to support dictionary encoding for these types.

Additional context