[clang-tools-extra] Add clang-tidy check readability-math-missing-parentheses (PR #84481)

[Piotr Zegar via cfe-commits]

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@@ -0,0 +1,25 @@
+.. title:: clang-tidy - readability-math-missing-parentheses
+
+readability-math-missing-parentheses
+====================================
+
+Check for missing parentheses in mathematical expressions that involve operators
+of different priorities. Parentheses in mathematical expressions clarify the order
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PiotrZSL wrote:

add empty line after "priorities."

https://github.com/llvm/llvm-project/pull/84481