* optionally allow redirects on http OTA updates
* Refactored HTTPClient::begin(url...) & setURL functions, now only beginInternal parses URL, sets ports
Added HTTPRedirect example.
* fix indentation for style check
* add space after while for style check
* don't use deprecated begin method in redirect example
* moved redirect handling code to HTTPClient.
only GET and HEAD requests are currently handled automatically
Redirects that fail to be automatically handled return the redirect code as before
* added support for POST/303 redirect
added device redirect tests
* add missing getLocation() implementation
* if the new location is only a path then only update the URI
* update HTTPClient API usage
skip the second POST as end() has different semantics and nulls the client pointer
use bearssl in ssl tests
add delay in python side when shutting down http web server so MacOS does not complain about address already in use
* fix crash if GET/POST was called after end() without a new begin()
update double POST test to insure no crash if POST called after end()
test now are for both AxTLS and BearSSL
* fix small comment typo
