Standardize logging and error handling

- Introduce new types: LoggedResult and LoggedError
- Introduce new extension methods to log and add additional msgs
- Never exit when logging error messages in Rust (all errors should be
  handled by using Result and Rust's error propagation)
- Remove all usages of anyhow as it doesn't fit Magisk's use cases

native/src/boot/Cargo.toml

@@ -15,7 +15,6 @@ pb-rs = { workspace = true }
 base = { path = "../base" }
 cxx = { path = "../external/cxx-rs" }
 byteorder = { workspace = true }
-anyhow = { workspace = true }
 size = { workspace = true }
 quick-protobuf = { workspace = true }
 argh = { workspace = true }