Add README and remove deprecated files

Author: davidjsanders

azure/README.md

@@ -0,0 +1,17 @@
+# tf-library
+A terraform library to provide common modules for key functions, such as jumpboxes, servers, 3 tier networks and more.
+
+At the current release, modules are supported for:
+
+* 3 tier network (jumpbox, master and worker subnets)
+* A linux server acting as a jumpbox with a network interface, public IP and ssh rule
+* A linux server with a network interface and randomly assigned password
+
+## Cloud Provider Support
+As of the current release:
+
+| Module   | Azure | GCP | AWS |
+| -------- | ----- | --- | --- |
+| 3 tier network | yes | no | no |
+| linux jumpbox | yes | no | no |
+| linux server | yes | no | no |