This patch makes it possible to enable/disable redirects on QNAM
level (before it was per-request only). This policy would be applied
to all subsequent requests* created by QNAM.
The policies we support at the moment:
a. Manual - that's what we always had - it's up to a user to handle
redirects.
b. NoLessSafeRedirectsPolicy - we allow http->http, http->https and
https->https redirects, but no protocol 'downgrade' (no
https->http redirects).
c. SameOriginPolicy - we check that protocol/host/port are
the same.
Updated tst_qnetworkreply.
*We previously were enabling redirect for each request, by
setting FollowRedirectsAttribute on QNetworkRequest object.
For backward compatibility this attribute has a higher priority
(if set) than QNAM's policy (and it will work as NoLessSafeRedirectsPolicy).
[ChangeLog][QtNetwork] Added redirects policy to QNAM
Task-number: QTPM-239
Task-number: QTPM-237
Change-Id: I493d1728254b71b61b5504937e8e01dca5953527
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
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