[clang-tools-extra] [clang-tidy][readability-redundant-parentheses] add option to prevent widely used work around (PR #164827)

[Baranov Victor via cfe-commits]

================
@@ -27,3 +27,16 @@ affect the semantics.
 .. code-block:: c++
 
   int a = (1 * 2) + 3; // no warning
+
+Options
+-------
+
+.. option:: AllowedDecls
+
+  A semicolon-separated list of names of declarations included variables and
+  functions to ignore when the parenthese around it.
----------------
vbvictor wrote:

Imo, this way is easier to read.
```suggestion
  A semicolon-separated list of names of declarations to ignore when the
  parentheses are around. Declarations can include variables or functions.
```

https://github.com/llvm/llvm-project/pull/164827