Take care of libraries

[schiermi]

• Avoid compile time warnings from CircularBuffer like…

In file included from src/OpenBikeSensorFirmware.h:29,
                 from src/configServer.cpp:30:
.pio/libdeps/esp32dev/CircularBuffer/CircularBuffer.h:3:102: note: #pragma message: WARNING: please change import directive from CircularBiffer.h to CircularBuffer.hpp
 #pragma message("WARNING: please change import directive from CircularBiffer.h to CircularBuffer.hpp")

• https://github.com/fhessel/esp32_https_server seems to be unmaintained since a while and throws deprecation warnings by the used TLS library openssl. https://github.com/jasenk2/esp32_https_server/tree/esp_tls at least addresses this deprecation.

A build containing those changes was tested for three weeks "on the bike". Testing included track uploads & OBS Webinterface access.