Create firewall

[MatanShalem-IMOD]

Do the following:

• [x] Create Firewall Policy
• [ ] Create Azure Firewall
• [x] link between the two, the Firewall Policy and the Firewall it self

[MatanShalem-IMOD]

Azure firewall requires public ip during deployment from terraform, therefor we cannot create it.

As a result we are going to do the following:

• [ ] Read more about Azure Network Watcher.
• [ ] Set up Azure Network Watcher.

** See issue #21