Feature 10296 Pip Standardization

Creates standard template for tox.ini
Introduces 'safety' for listing upstream CVEs
Pins all versions of all upstream modules
Removes dependencies from Makefile and Dockerfile
and places them into requirements.txt

Change-Id: If2c52b101bad455534096567b4d68c2baba05d22
Signed-off-by: beierlm <mark.beierl@canonical.com>
diff --git a/requirements.in b/requirements.in
new file mode 100644
index 0000000..24f4c58
--- /dev/null
+++ b/requirements.in
@@ -0,0 +1,18 @@
+# Copyright ETSI Contributors and Others.
+#
+# 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.
+
+pyang
+pyangbind
+pyyaml
\ No newline at end of file