Fiscal Printer trait for implement

Allows define a trait using base values for documents send to and from fiscal printer.

For Target Raspberry Pi

SH rustup target add armv7-unknown-linux-gnueabihf

https://medium.com/swlh/compiling-rust-for-raspberry-pi-arm-922b55dbb050

Examples:

rust main.js

```rust let mut handler = serialport::new("/dev/ttyUSB0", 9600) .timeout(Duration::frommillis(10)) .open().expect("Failed to open port"); let mut pnpdriver: pnp::printer::Printer = FiscalPrinter::new();

let _x_result = _pnp_driver.print_report(&mut _handler, Report::new(ReportType::XReport));

```