This set of commits replaces macros with more modern constructs if they are available.#494

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KOLANICH wants to merge 3 commits intoarduino:masterfrom

KOLANICH-libs:demacro

Commits on Feb 24, 2023

Replaced the integer macro constants defines with enums in `Arduino.h`.

committed
Excluded floating point macrodef constants out of `extern "C"` block.
KOLANICH
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Replaced the floating point macrodef constants with `constexpr double` in the case of C++.
KOLANICH
committed