Solution: support websocket with tls (wss)

Solution: extract path and host from the address

Solution: fix regression introduced by:
https://github.com/zeromq/libzmq/pull/3168

Correctly fall back to user message if the first byte is neither 0 nor
1, and add a simple unit test

Fixes https://github.com/zeromq/libzmq/issues/3656

* Introduce DRAFT zmq_ctx_set_ext() and zmq_ctx_get_ext() methods. Change
ZMQ_THREAD_NAME_PREFIX to allow for non-numeric thread name prefixes.

Solution: move the definition of __STDC_LIMIT_MACROS somewhere the test actually uses

Solution: properly set defines from test_security_curve

Solution: implement ZWS 2.0 which websocket transport for zeromq

Solution: don't write it

Solution: Add heartbeat tests for CLIENT, SERVER, GATHER and SCATTER
    socket types. RADIO and DISH tests won't be added since heartbeating
    is not yet supported.

Solution: pass the line number as part of the testutil functions

Solution: unify the two APIs, as they are both still in DRAFT state and
thus can be changed.

 Support XPub socket send last value caching to last subscription pipe with ZMQ_XPUB_MANUAL_LAST_VALUE. (#3511)

* Add ZMQ_XPUB_MANUAL_LAST_VALUE

* Surpport xpub send last value caching to one pipe with ZMQ_XPUB_MANUAL_LAST_VALUE

* Add test_xpubub_manual_last_value

* Add relicense and doc

Solution: Create a unique endpoint for each fcn call.

Solution: Initialized it

Solution: Allow ZMQ_PUB and ZMQ_PUSH sockets types for the monitoring.
This way someone could create a ZMQ_PULL socket connected to multiple
monitoring sockets at the same time.

Solution: change return type to int (again) and return fd via an output parameter

Solution: Add some and document it.

Solution: Add doc & unit tests

Solution: libm and libsocket have to be linked explicitely

Solution: include sent and received counts on assertion failure

Solution: use array recv variant instead

Solution: split test cases and remove code duplication

Solution: use more specific assertion macro

Solution: replace custom code by test_bind

Solution: add WSA_FLAG_OVERLAPPED socket flag

Solution: make use of custom Unity macros

Solution: call bind_loopback_tipc where applicable

Solution: call bind_loopback_ipc where applicable

Solution: call bind_loopback_ipv4 where applicable

Solution: rename to more meaningful name

Solution: remove s_send(more) and replace all uses

Solution: define setUp/tearDown functions via SETUP_TEARDOWN_TESTCONTEXT macro where possible

Solution: use bind_loopback_ipv4 instead

Solution: add documentation

Solution: remove from header and declare as static

Solution: remove and add where needed

Solution: convert streq/strneq into functions

Solution: remove declaration and make functions static