azure-iot-sdk-c: New package

Despite newer versions being available, this patch creates a package
for version 2017-05-05, because newer version have issues that need to
be addressed.

Still, the projects install target installs the wrong files, so custom
commands are needed for staging_install and target_install.

Signed-off-by: André Hentschel <nerv@dawncrow.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
diff --git a/package/Config.in b/package/Config.in
index fdfcd02..355aa52 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1264,6 +1264,7 @@
 	source "package/alljoyn-base/Config.in"
 	source "package/alljoyn-tcl/Config.in"
 	source "package/alljoyn-tcl-base/Config.in"
+	source "package/azure-iot-sdk-c/Config.in"
 	source "package/batman-adv/Config.in"
 	source "package/c-ares/Config.in"
 	source "package/canfestival/Config.in"