Update rules.csv, initial package description

Author: MichaelRFairhurst

rule_packages/cpp/SideEffects4.json

@@ -0,0 +1,27 @@
+{
+  "MISRA-C++-2023": {
+    "RULE-4-6-1": {
+      "properties": {
+        "enforcement": "undecidable",
+        "obligation": "required"
+      },
+      "queries": [
+        {
+          "description": "Code behavior should not have unsequenced or indeterminately sequenced operations on the same memory location.",
+          "kind": "problem",
+          "name": "Operations on a memory location shall be sequenced appropriately",
+          "precision": "very-high",
+          "severity": "error",
+          "short_name": "MemoryUsageNotSequenced",
+          "tags": [
+            "scope/system",
+            "portability",
+            "correctness",
+            "maintainability"
+          ]
+        }
+      ],
+      "title": "Operations on a memory location shall be sequenced appropriately"
+    }
+  }
+}

rules.csv

@@ -836,7 +836,7 @@ cpp,MISRA-C++-2023,DIR-0-3-2,Yes,Required,,,A function call shall not violate th
 cpp,MISRA-C++-2023,RULE-4-1-1,Yes,Required,Undecidable,System,A program shall conform to ISO/IEC 14882:2017 (C++17),,Toolchain2,Hard,
 cpp,MISRA-C++-2023,RULE-4-1-2,Yes,Advisory,Decidable,Single Translation Unit,Deprecated features should not be used,,Toolchain2,Very Hard,
 cpp,MISRA-C++-2023,RULE-4-1-3,Yes,Required,Undecidable,System,There shall be no occurrence of undefined or critical unspecified behaviour,,Undefined,Very Hard,
-cpp,MISRA-C++-2023,RULE-4-6-1,Yes,Required,Undecidable,System,Operations on a memory location shall be sequenced appropriately,RULE-13-2,SideEffects3,Easy,
+cpp,MISRA-C++-2023,RULE-4-6-1,Yes,Required,Undecidable,System,Operations on a memory location shall be sequenced appropriately,RULE-13-2,SideEffects4,Easy,
 cpp,MISRA-C++-2023,RULE-5-0-1,Yes,Advisory,Decidable,Single Translation Unit,Trigraph-like sequences should not be used,A2-5-1,Trigraph,Very Hard,
 cpp,MISRA-C++-2023,RULE-5-7-1,Yes,Required,Decidable,Single Translation Unit,The character sequence /* shall not be used within a C-style comment,M2-7-1,ImportMisra23,Import,
 cpp,MISRA-C++-2023,DIR-5-7-2,Yes,Advisory,,,Sections of code should not be “commented out”,A2-7-2,ImportMisra23,Import,