Add coverage for multiple panels

A simple test for multiple (same) panel in a yaml file.

Signed-off-by: Paul Belanger <pabelanger@redhat.com>

tests/schema/fixtures/dashlist-002.yaml

@@ -0,0 +1,21 @@
+panels:
+    - type: dashlist
+      title: Starred Dashboards
+      error: false
+      editable: true
+      span: 12
+      id: 1
+      mode: starred
+      query: ''
+      limit: 10
+      tag: ''
+    - type: dashlist
+      title: FooBar
+      error: false
+      editable: true
+      span: 6
+      id: 2
+      mode: starred
+      query: ''
+      limit: 3
+      tag: ''

tests/schema/fixtures/text-0002.yaml

@@ -0,0 +1,19 @@
+panels:
+    - type: text
+      title: no title (click here)
+      error: false
+      editable: true
+      span: 12
+      id: 1
+      mode: markdown
+      content: ''
+      style: {}
+    - type: text
+      title: FooBar
+      error: false
+      editable: true
+      span: 6
+      id: 3
+      mode: markdown
+      content: ''
+      style: {}