git: add copyrights to git configuration files

Author: densamoilov

.gitattributes

@@ -37,6 +37,7 @@
 *.txt             text
 *.xml             text
 *.pump            text
+
 # Declare files that will always have OS specific line endings on checkout.
 *.vcxproj.user    text eol=crlf
 *.sh              text eol=lf

.gitignore

@@ -1,3 +1,19 @@
+#===============================================================================
+# Copyright 2019 Intel Corporation
+#
+# 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.
+#===============================================================================
+
 build
 external
 .*.sw?