Added clang-tidy config and cleaned up the code a little.

.clang-tidy

@@ -0,0 +1,73 @@
+Checks: '*,
+         -abseil-*,
+         -altera-*,
+         -android-*,
+         -boost-*,
+         -darwin-*,
+         -fuchsia-*,
+         -google-*,
+         -hicpp-*,
+         -linuxkernel-*,
+         -llvm-*,
+         -llvmlibc-*,
+         -mpi-*,
+         -objc-*,
+         -zircon-*,
+         
+         -bugprone-easily-swappable-parameters,
+         -bugprone-exception-escape,
+         -bugprone-unhandled-exception-at-new,
+         -cert-dcl21-cpp,
+         -cert-err58-cpp,
+         -cppcoreguidelines-avoid-capturing-lambda-coroutines,
+         -cppcoreguidelines-avoid-const-or-ref-data-members,
+         -cppcoreguidelines-avoid-do-while,
+         -cppcoreguidelines-avoid-reference-coroutine-parameters,
+         -cppcoreguidelines-avoid-magic-numbers,
+         -cppcoreguidelines-avoid-non-const-global-variables,
+         -cppcoreguidelines-macro-usage,
+         -cppcoreguidelines-non-private-member-variables-in-classes,
+         -cppcoreguidelines-pro-bounds-array-to-pointer-decay,
+         -cppcoreguidelines-pro-bounds-constant-array-index,
+         -cppcoreguidelines-pro-bounds-pointer-arithmetic,
+         -cppcoreguidelines-pro-type-member-init,
+         -cppcoreguidelines-pro-type-reinterpret-cast,
+         -cppcoreguidelines-pro-type-static-cast-downcast,
+         -cppcoreguidelines-pro-type-union-access,
+         -cppcoreguidelines-pro-type-vararg,
+         -cppcoreguidelines-special-member-functions,
+         -modernize-macro-to-enum,
+         -misc-include-cleaner,
+         -misc-no-recursion,
+         -misc-non-private-member-variables-in-classes,
+         -misc-use-anonymous-namespace,
+         -modernize-return-braced-init-list,
+         -modernize-use-auto,
+         -modernize-use-trailing-return-type,
+         -portability-simd-intrinsics,
+         -readability-avoid-unconditional-preprocessor-if,
+         -readability-container-data-pointer,
+         -readability-convert-member-functions-to-static,
+         -readability-implicit-bool-conversion,
+         -readability-isolate-declaration,
+         -readability-magic-numbers,
+         -readability-named-parameter,
+         -readability-redundant-access-specifiers,
+         -readability-uppercase-literal-suffix,
+         -readability-use-anyofallof'
+
+CheckOptions:
+  - key: readability-identifier-length.IgnoredParameterNames
+    value: '^[xyz]$'
+  - key: readability-identifier-length.IgnoredLoopCounterNames
+    value: '^[xyz]$'
+  - key: readability-identifier-length.IgnoredVariableNames
+    value: '(it|NO)'
+  - key: readability-function-cognitive-complexity.Threshold
+    value: 50
+
+WarningsAsErrors: '*'
+
+HeaderFilterRegex: 'source/*.hpp$'
+
+UseColor: false