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/doc/src/user/raise_proto.im b/doc/src/user/raise_proto.im
new file mode 100644
index 0000000..13f906f
--- /dev/null
+++ b/doc/src/user/raise_proto.im
@@ -0,0 +1,57 @@
+.** vim: sw=4 ts=4 et :
+.if false
+==================================================================================
+    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.
+==================================================================================
+.fi
+
+
+.** we cant generate ncie tables it seems in any mark* language
+.** so do nice formatting in pfm, and just embed the protos
+.** for the bloody ascii based things.
+
+.ca start proto.ca
+&ex_end
+  bool Raise( );
+  bool Raise( int severity, int problem, std::string info );
+  bool Raise( int severity, int problem, std::string info,
+              std::string addional_info );
+  bool Raise_again( );
+&ex_end
+.ca end
+
+.if pfm
+
+
+&beg_table( 5.25i .3i : 80,15 )
+&col
+.im proto.ca
+&ex_start
+(1)
+(2)
+(3)
+
+(4)
+&ex_end
+&end_table
+
+
+.ei
+.im proto.ca
+.fi
+
+&fig_cen(The Raise function prototypes.)
+&space