chore: Add clippy lints (#529)

Lints are added (deny) at crate level.

In each offending file, the failing lints are explicitly allowed.
Each file will be fixed in subsequent PRs.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

src/rvm/program/core.rs

@@ -1,3 +1,8 @@
+#![allow(
+    clippy::missing_const_for_fn,
+    clippy::as_conversions,
+    clippy::unused_trait_names
+)]
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 

src/rvm/program/listing.rs

@@ -1,5 +1,15 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
+#![allow(
+    clippy::unwrap_used,
+    clippy::arithmetic_side_effects,
+    clippy::indexing_slicing,
+    clippy::option_if_let_else,
+    clippy::missing_const_for_fn,
+    clippy::as_conversions,
+    clippy::unused_trait_names,
+    clippy::pattern_type_mismatch
+)]
 
 use alloc::format;
 use alloc::string::{String, ToString};

src/rvm/program/recompile.rs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
+#![allow(clippy::unused_trait_names)]
 
 use super::Program;
 use alloc::string::{String, ToString};

src/rvm/program/rule_tree.rs

@@ -1,5 +1,10 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
+#![allow(
+    clippy::arithmetic_side_effects,
+    clippy::unused_trait_names,
+    clippy::pattern_type_mismatch
+)]
 
 use alloc::format;
 use alloc::string::{String, ToString};

src/rvm/program/serialization/binary.rs

@@ -1,5 +1,11 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
+#![allow(
+    clippy::indexing_slicing,
+    clippy::arithmetic_side_effects,
+    clippy::as_conversions,
+    clippy::unused_trait_names
+)]
 
 use alloc::format;
 use alloc::string::{String, ToString};

src/rvm/program/serialization/json.rs

@@ -1,6 +1,8 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
+#![allow(clippy::as_conversions, clippy::unused_trait_names)]
+
 use alloc::format;
 use alloc::string::{String, ToString};
 use alloc::vec::Vec;

src/rvm/program/serialization/mod.rs

@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
+#![allow(clippy::redundant_pub_crate)]
 
 pub(crate) mod binary;
 mod json;

src/rvm/program/serialization/value.rs

@@ -1,5 +1,10 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
+#![allow(
+    clippy::redundant_pub_crate,
+    clippy::unused_trait_names,
+    clippy::pattern_type_mismatch
+)]
 
 use alloc::collections::{BTreeMap, BTreeSet};
 use alloc::format;

src/rvm/program/types.rs

@@ -1,6 +1,11 @@
+#![allow(clippy::missing_const_for_fn)]
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
-
+#![allow(
+    clippy::indexing_slicing,
+    clippy::arithmetic_side_effects,
+    clippy::as_conversions
+)]
 use alloc::string::String;
 use alloc::vec::Vec;
 use serde::{Deserialize, Serialize};