misc: Add license blurb to unlicensed files

This was roughly achieved with:

$ git ls-files |
	grep '.[ch]p*$' |
	while read F; do head -n 1 $F | fgrep -v '/*' > /dev/null && echo $F; done |
	while read L; do cat apache $L > ${L}.tmp; mv ${L}.tmp ${L}; done

Some fixups performed by hand to eliminate modifications to files that
were hit which should not have been.

Change-Id: I9fa5af4644687d8b595a6cf70d6f7575a767d11a
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/pnor_partition_table.hpp b/pnor_partition_table.hpp
index d19ff4b..1b932a1 100644
--- a/pnor_partition_table.hpp
+++ b/pnor_partition_table.hpp
@@ -1,3 +1,21 @@
+/*
+ * Mailbox Daemon Implementation
+ *
+ * Copyright 2018 IBM
+ *
+ * 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.
+ *
+ */
 #pragma once
 
 #include <vector>