turn into a Cargo crate

src/examples/mod.rs

@@ -0,0 +1,8 @@
+//! Examples
+// Auto-generated. Do not modify.
+pub mod _0_hello;
+pub mod _1_itm;
+pub mod _2_panic;
+pub mod _3_crash;
+pub mod _4_register_interrupt_handler;
+pub mod _5_override_exception_handler;