Fix set float and double issues.
Minor update for internal client.
Merge branch 'master' of https://github.com/mobizt/Firebase-ESP32
Fix native Ethernet and Ethernet integration issues.
Fix filesystem issue.
Set some function and option obsoleted and update examples.
Fix the compatibility issue of missing fb_esp_rtdb_data_type values i… …n firebase_rtdb_data_type enums.
Fix null pointer exception for external client.
Fix some compiler warning treats as error in Arduino IDE.