add requirement file for python module

requirements.txt

@@ -0,0 +1,36 @@
+## Default requirements
+ansible[azure]>=2.9,<2.10
+asn1crypto
+bcrypt
+cffi!=1.11.3
+cryptography
+enum34
+idna
+ipaddress
+Jinja2
+MarkupSafe
+paramiko
+pyasn1
+pycparser
+PyNaCl
+PyYAML
+six
+
+## misc explicit needs
+appdirs
+netaddr
+requests
+requests_toolbelt
+wheel
+
+## Azure
+azure-storage-common
+packaging
+# requests[security]
+pyOpenSSL
+
+## PaloAlto
+xmltodict
+pandevice
+pan-python
+pan-os-python