clang-tidy: Initial commit

Added initial .clang-tidy configuration file with recommended C++ checks
aligned with the OpenBMC-approved checklist. This setup enforces modern
C++ best practices and helps catch common issues early in development.

Change-Id: If50536673f28cd47d1ee29f5400830163e078c1e
Signed-off-by: Jayanth Othayoth <ojayanth@gmail.com>
1 file changed