Move unittest YAML files into their own directory, pending more python unit tests in a followup commit

unittest/yaml/error-schema-field2.yaml

@@ -0,0 +1,34 @@
+test:
+  description: "A bunch of schema fields with the wrong type"
+  errors:
+    expected:
+     - "yamale: .* is not a "
+     - "yamale: .*: Unexpected element"
+     - "Length of .* is greater than 15"
+    count: 13
+---
+interfaces:
+  GigabitEthernet1/0/0:
+    description: 1234
+    lcp: True
+    mac: "0001.0203.0405"
+    addresses: [ 1234, "hello world", 192.0.2.1, 2001:db8::1 ]
+    sub-interfaces:
+      100:
+        description: [ "a", "list" ]
+        encapsulation:
+          dot1q: "hello world"
+
+  GigabitEthernet1/0/1:
+    mtu: 1500
+    lcp: "a234567890123456"
+    sub-interfaces:
+      "string":
+        description: "the sub-int key should be an int"
+
+garbage:
+  description: "There's no 'garbage' scope"
+
+loopback:
+  loop0:
+    description: "The toplevel scope is 'loopbacks' plural"