Implement TryFrom<&str> for Decimal

[c410-f3r]

Has the same implementation of FromStr for Decimal.

Advantageous because TryFrom is already included in the prelude meaning that no import is necessary.

use core::str::FromStr;
let _ = Decimal::from_str("1");

let _ = Decimal::try_from("1");

[paupino]

Thank you for your help with this library @c410-f3r !

[c410-f3r]

Thank you @paupino !