🎨 Revamp CMake to be correct and easy to understand (#69)

🎨 Cleanup include path for catch2

✨ Add basic .deb generation support
  WiX and RPM support is still needed (if even desired?)

⬆️ Upgrade minimum CMake version to 3.14
⬆️ Upgrade Catch to Catch v2.9.2
📌 Pin Catch to v2.9.2

tests/swap.cpp

@@ -1,4 +1,4 @@
-#include "catch.hpp"
+#include <catch2/catch.hpp>
 #include <tl/expected.hpp>
 
 struct no_throw {
@@ -98,4 +98,4 @@ TEST_CASE("swap") {
 
   REQUIRE(a->i == s1);
   REQUIRE(b.error().i == s2);
-}
+}