Make HTTPClient take a WiFiClient parameter, allowing you to pass in a
simple HTTP WiFiClient or a BearSSL or axTLS WiFiClientSecure with
any desired verification options. Deprecate the older, TLSTraits methods.
Add basic HttpsClient example.
Add optional LED feedback to the Update class
On Linux (presumably Mac too), the header of the library
could not be included, caps changed to match the filename.
The line 'architectures=ESP8266' in library.properties caused:
WARNING: library ESP8266httpUpdate claims to run on [ESP8266] architecture(s) and may be incompatible with your current board which runs on [esp8266] architecture(s).