Enabling advanced checks for clang-tidy

[sorru94]

Some clang-tidy checks have not been enabled in #112 as they would require large refactoring changes.
They are tracked in this issue and might be enabled in the next release.

• modernize-macro-to-enum
  Use enums instead of macros when applicable.
• readability-function-cognitive-complexity
  Warns against too complex functions.
• readability-function-size
  Warns against too long functions.