Add API allowing xAPPs to send alarm messages

This change adds the ability for an xAPP to send alarms to
the alarm collector/manager via RMR messages.

This is a BREAKING change because the C++ framework classes
are all now wrapped in the xapp:: namespace.

Issue-ID: RIC-426

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Change-Id: I552292d57e987313ec684bd55f8780ef5fba74fe
diff --git a/src/alarm/CMakeLists.txt b/src/alarm/CMakeLists.txt
new file mode 100644
index 0000000..2bdde59
--- /dev/null
+++ b/src/alarm/CMakeLists.txt
@@ -0,0 +1,40 @@
+# vim: sw=4 ts=4 noet:
+#
+#==================================================================================
+#   Copyright (c) 2020 Nokia
+#   Copyright (c) 2020 AT&T Intellectual Property.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#==================================================================================
+#
+
+
+# For clarity: this generates object, not a lib as the CM command implies.
+#
+add_library( alarm_objects OBJECT
+	alarm.cpp
+)
+
+target_include_directories (alarm_objects PUBLIC
+	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+	$<INSTALL_INTERFACE:include>
+	PRIVATE src)
+
+# header files should go into .../include/xfcpp/
+if( DEV_PKG )
+	install( FILES
+		alarm.hpp
+		DESTINATION ${install_inc}
+	)
+endif()
+