Merge pull request #2595 from zjeffer/master

Added initial .clang-tidy file

.clang-tidy

@@ -0,0 +1,28 @@
+Checks: >
+  -*,
+  bugprone-*
+  misc-*,
+  modernize-*,
+  performance-*,
+  portability-*,
+  readability-*,
+  -fuchsia-trailing-return,
+  -readability-magic-numbers,
+  -modernize-use-nodiscard,
+  -modernize-use-trailing-return-type,
+  -readability-braces-around-statements,
+  -readability-redundant-access-specifiers,
+  -readability-redundant-member-init,
+  -readability-redundant-string-init,
+  -readability-identifier-length
+CheckOptions:
+  - { key: readability-identifier-naming.NamespaceCase,          value: lower_case }
+  - { key: readability-identifier-naming.ClassCase,              value: CamelCase  }
+  - { key: readability-identifier-naming.StructCase,             value: CamelCase  }
+  - { key: readability-identifier-naming.FunctionCase,           value: camelBack  }
+  - { key: readability-identifier-naming.VariableCase,           value: camelBack  }
+  - { key: readability-identifier-naming.PrivateMemberCase,      value: camelBack  }
+  - { key: readability-identifier-naming.PrivateMemberPrefix,    value: m_         }
+  - { key: readability-identifier-naming.EnumCase,               value: CamelCase  }
+  - { key: readability-identifier-naming.EnumConstantCase,       value: UPPER_CASE }
+  - { key: readability-identifier-naming.GlobalConstantCase,     value: UPPER_CASE }