Included Workload Profile, UDR and Azure Firewall into Terraform implementation

[HoussemDellai]

Changes in this PR:

• Created Azure Firewall module for SKU Basic
• Created Firewall Policy with rules to allow egress traffic for needed resources
• Created Route Table attached to infra subnet to route all traffic to Firewall
• Created Workload Profile in ACA Environment
• Changed infra subnet CIDR range to /27 (just to demo this is possible)
• Added Diagnostic Settings for Firewall
• Added naming convention for Firewall and Firewall Policy

Tested and working:

• Tested the egress traffic from ACA App go through Azure Firewall public IP (curl ifconf.me)

Tested and not working:

• Redeployed the same template multiple times, and it breaks because of dependencies between modules (noticed this same behavior with the main branch).
• Also noticed that Terraform starts creating Diagnostic Settings (DS), then for some reason stops immediately. DS is then created but Terraform is not aware about the creation, so it is not saved into the state file. On next execution, I notice a conflict.

[HoussemDellai]

@ibersanoMS done :) You can re-check !

[HoussemDellai]

@ibersanoMS done :)