fix: 278: Improve Bytes.equals() performance (#282)

Fixes: #278
Reviewed-by: Alex Kuzmin <alex.kuzmin@swirldslabs.com>, Ivan Malygin <ivan@swirldslabs.com>
Signed-off-by: Artem Ananev <artem.ananev@swirldslabs.com>

pbj-core/gradle.properties

@@ -1,5 +1,5 @@
 # Version number
-version=0.9.3-SNAPSHOT
+version=0.9.4-SNAPSHOT
 
 # Need increased heap for running Gradle itself, or SonarQube will run the JVM out of metaspace
 org.gradle.jvmargs=-Xmx2048m

pbj-core/pbj-runtime/src/main/java/com/hedera/pbj/runtime/io/buffer/Bytes.java

@@ -455,16 +455,7 @@ public String toHex() {
     public boolean equals(@Nullable final Object o) {
         if (this == o) return true;
         if (!(o instanceof Bytes that)) return false;
-        if (length != that.length()) {
-            return false;
-        }
-        if (length == 0) return true;
-        for (int i = 0; i < length; i++) {
-            if (getByte(i) != that.getByte(i)) {
-                return false;
-            }
-        }
-        return true;
+        return Arrays.equals(buffer, start, start + length, that.buffer, that.start, that.start + that.length);
     }
 
     /**