asyncmqtt: add recipe

async_mqtt is an C++ library for asynchronous MQTT communication.
The library is header-only using C++17 and Boost libraries; the main
features are client and server support, MQTT v3.1.1 and v5.0 support,
continuous packet sending and auto acquiring/mapping topic alias is
supported.

Signed-off-by: Andrea Ricchi <andrea.ricchi@amarulasolutions.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-connectivity/asyncmqtt/asyncmqtt_9.0.2.bb

@@ -0,0 +1,14 @@
+SUMMARY = "MQTT communication C++ library using Boost.Asio"
+HOMEPAGE = "https://github.com/redboltz/async_mqtt"
+LICENSE = "BSL-1.0"
+
+LIC_FILES_CHKSUM = "file://LICENSE;md5=e4224ccaecb14d942c71d31bef20d78c"
+
+SRC_URI = "git://github.com/redboltz/async_mqtt;protocol=http;branch=main;protocol=https"
+SRCREV = "51a97adfd022cf5205c3bb31f38ace1f7fbd21a1"
+
+DEPENDS = "openssl boost"
+
+S = "${WORKDIR}/git"
+
+inherit cmake