changed structure and added drone ci

.drone.yaml

@@ -0,0 +1,18 @@
+kind: pipeline
+name: default
+type: docker
+
+trigger:
+  branch:
+    - main
+
+steps:
+  - name: Terraform FMT PR
+    image: hashicorp/terraform:1.5
+    environment:
+      
+    command:
+      - "-chdir=infrastructure fmt -diff -check"
+    when:
+      event:
+      - pull_request