SECURITY.md shows up as a top menu bar item in GitHub's browser UI.

Moved and updated contents of https://libwebsockets.org/lws-api-doc-main/html/md_READMEs_README_vulnerability_reporting.html

should close #3076

https://github.com/warmcat/libwebsockets/issues/3070

https://github.com/warmcat/libwebsockets/issues/3049

https://github.com/warmcat/libwebsockets/issues/3048

https://github.com/warmcat/libwebsockets/issues/3044

https://github.com/warmcat/libwebsockets/issues/3039

https://github.com/warmcat/libwebsockets/issues/3028

Allow this kind of pattern for context creation info preparation

        struct lws_context_creation_info info;

        lws_context_info_defaults(&info, policy);
        info.default_loglevel = LLL_USER | LLL_ERR | LLL_WARN;
        lws_cmdline_option_handle_builtin(argc, argv, &info);

Calling lws_context_info_defaults() zeros down and prepares boilerplate in
the info struct, setting the default_loglevel asserts your application
default for the loglevel and then lws_cmdline_option_handle_builtin() will
set either that default loglevel, or override it from the commandline with
-d 1039 etc

Provide a way to apply exception mount urls that exist on top of a larger
mount, but provide an exception which enforces the url to not be serviced
by the mount code, but by whatever dynamic handler is in place.

Long story, there's also minimal example to take care of.

This change should take care of anything with ETHER_ADDR_LEN in
net/ethernet.h plus windows, for both the lib and example.

Somehow, a string replacement of ns by fsm had damaged
the license text and introduced garbage.

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Described `lws_container_of(...)` usage, added note about `lws_sorted_usec_list_t` zeroing.

Introduce a LWS_WITH_WOL and an api to wake a mac address, optionally with
an address bind to the local interface to go out on.

Add a helper to parse ascii mac addresses well, and add tests.

Also thanks to OgreTransporter
https://github.com/warmcat/libwebsockets/issues/3016

https://github.com/warmcat/libwebsockets/issues/3013