implemented ThriftTyped, Encode, and Decode for OrderedFloat<f64>

[ktsujister]

With terminal_thrift 0.3.2, below thrift file:

service Calculator {
    double add(1: double num1, 2: double num2)
}

would generate OrderedFloat<f64> for double.
And since there's no Encode, Decode, and ThriftType implementation for OrderedFloat<f64> you get these errors:

error[E0277]: the trait bound `thrift::rt::OrderedFloat<f64>: thrift::protocol::ThriftTyped` is not satisfied
error[E0277]: the trait bound `thrift::rt::OrderedFloat<f64>: thrift::protocol::Encode` is not satisfied
error[E0277]: the trait bound `thrift::rt::OrderedFloat<f64>: thrift::protocol::Decode` is not satisfied

thrift: master
terminal_thrift: 0.3.2
rust: 1.12.0