formatserdeerror

Format serde errors in a way to make it obvious where the error in the source file was.

Currently serdeyaml and serdejson are supported. Extending the library to more data types should be relativly easy as long as the errors emit a line and column.

Usage Example:

```rust use formatserdeerror::SerdeError;

[derive(Debug, serde::Serialize, serde::Deserialize)]

struct Config { values: Vec, }

fn parseconfig() -> Result { let configstr = "values: - 'first' - 'second' - third:";

let config = serdeyaml::fromstr::(configstr) .maperr(|err| SerdeError::new(configstr.tostring(), err))?;

Ok(config) } ```

The output will be:

Error: | values: | - 'first' | - 'second' 4 | - third: | ^ values[2]: invalid type: map, expected a string at line 4 column 10