Allow securiting asynchronous endpoints
We need the possibility to allow async requests by AAA because SSE
(Server Sent Events) use async communication.
Previous behavior is set as default. New behavior is possible set by
new parameter in FilterDetails and ServletDetails. These are also
covered by an explicit test suite.
ShiroWebContextSecurer is also updated to take advantage of this
new capability.
JIRA: AAA-199
Change-Id: I83d579bbe33cfeb33f44150ecbe3619654bebe36
Signed-off-by: Lukas Baca <lbaca@luminanetworks.com>
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>