Disable strict nodiscard and implicit Boolean conversion checks (#88)

Author: knoepfel

.clang-tidy

@@ -22,11 +22,13 @@ Checks: >
   -misc-no-recursion,
   modernize-*,
   -modernize-use-trailing-return-type,
+  -modernize-use-nodiscard,
   performance-*,
   portability-*,
   readability-*,
   -readability-function-cognitive-complexity,
   -readability-identifier-length,
+  -readability-implicit-bool-conversion,
   -readability-magic-numbers,
   -readability-named-parameter,
   -readability-uppercase-literal-suffix,