Easy self-deleting executable.
Simply register a guard (either soft or hard) in the program entrypoint, and have it be dropped to delete the binary.
```rust
fn main() {
let _mortem = mortem::hard(); // register mortem guard
// some code
println!("Hello!")
// _mortem drops and executable is deleted
} ```
soft and hard?The soft handler exits on IO errors and only tries to delete the executable once;
the hard handler keeps trying till the executable is successfully deleted.
See the documentation.