substitute all uses of semihosting and funnel with logging crate

Cargo.toml

@@ -22,5 +22,12 @@ iso14443 = {path = "../iso14443"}
 default = []
 std = ["logging/std"]
 
+log-all = []
+log-none = []
+log-info = []
+log-debug = []
+log-warn = []
+log-error = []
+
 [patch.crates-io]
 heapless = { git = "https://github.com/nicolas-solokeys/heapless", branch = "bytebuf" }

src/dispatch.rs

@@ -25,7 +25,7 @@ pub enum InterfaceType{
     Contactless,
 }
 
-use logging;
+use crate::logger::info;
 
 use interchange::Responder;
 
@@ -206,7 +206,7 @@ impl ApduDispatch
             Ok(AppletResponse::Defer) => {}
 
             Err(status) => {
-                logging::info!("applet error").ok();
+                info!("applet error").ok();
                 use InterfaceType::*;
                 match self.current_interface {
                     Contactless =>

src/lib.rs

@@ -2,3 +2,5 @@
 
 pub mod applet;
 pub mod dispatch;
+
+logging::add!(logger);