Both libraries now ship their own CMakeLists.txt, so on ESP-IDF they can be
pulled straight from the component registry (noise-c 0.1.15, libsodium
1.10021.2) instead of going through ESPHome's PlatformIO library converter.
A library must not be both converted and managed, or IDF refuses component
discovery, so the converter now takes a set of names the toolchain already
provides. Arduino keeps the converted path: arduino-esp32 brings its own
espressif/libsodium and IDF cannot pick between two managed components whose
names differ only by namespace.
