feat: add draft of a possible yaml config file

Author: omissis

examples/.goarkitect.yml

@@ -0,0 +1,28 @@
+---
+rules:
+  - name: example
+    kind: file
+    matcher:
+      name: all
+      options:
+        basepath: /tmp/example
+    thats: []
+    excepts: []
+    shoulds:
+      - kind: end_with
+        suffix: file
+      - kind: exist
+      - kind: match_regex
+        res: /[a-z]+/
+    because: "it is an example"
+  - name: makefile_exists
+    kind: file
+    matcher:
+      name: one
+      options:
+        filename: /tmp/example/Makefile
+    thats: []
+    excepts: []
+    shoulds:
+      - kind: exist
+    because: "it is needed to encapsulate common project operations"