Implement `operator<` for EntityId to be used as hashmap keys

[MeFisto94]

Description entEntityID.hpp doesn't implement the order operator and as such it can't be used as a key in (hash) maps. Since the intention is clear in every other overload that just delegates to this.hash, this should probably be reflected in this operator, too.

Steps to reproduce if (entityId1 < entityId2) {}

Expected behavior Delegating to the contained hash

Examples

diff --git a/include/RED4ext/Scripting/Natives/entEntityID.hpp b/include/RED4ext/Scripting/Natives/entEntityID.hpp
index ff9f0728..63a11b37 100644
--- a/include/RED4ext/Scripting/Natives/entEntityID.hpp
+++ b/include/RED4ext/Scripting/Natives/entEntityID.hpp
@@ -38,6 +38,11 @@ struct EntityID
         return hash == aRhs.hash;
     }

+    constexpr bool operator<(const EntityID& rhs) const noexcept
+    {
+        return hash < rhs.hash;
+    }
+
     [[nodiscard]] constexpr bool IsDefined() const noexcept
     {
         return hash;