`Integer` values exceeding the limits of i64 are converted to `FloatingPoint`

[chirizxc]

If an integer exceeds the limits of i64, it is converted to a float:

saphyr/saphyr/src/scalar.rs

Lines 191 to 206 in 001b709

	match &*v {
	"~" | "null" | "Null" | "NULL" => Self::Null,
	"true" | "True" | "TRUE" => Self::Boolean(true),
	"false" | "False" | "FALSE" => Self::Boolean(false),
	_ => {
	if let Ok(integer) = v.parse::<i64>() {
	Self::Integer(integer)
	} else if let Some(float) = parse_core_schema_fp(&v) {
	Self::FloatingPoint(float.into())
	} else {
	Self::String(v)
	}
	}
	}
	}
	}

Can we just return an error saying that the number is too large?