first commit : grave core and admin plugin

system/blueprints/pages/modular_new.yaml

@@ -0,0 +1,56 @@
+rules:
+  slug:
+    pattern: "[a-z][a-z0-9_\-]+"
+    min: 2
+    max: 80
+
+form:
+  validation: loose
+  fields:
+
+    section:
+        type: section
+        title: PLUGIN_ADMIN.ADD_MODULAR_CONTENT
+
+    title:
+      type: text
+      label: PLUGIN_ADMIN.PAGE_TITLE
+      validate:
+        required: true
+
+    folder:
+      type: text
+      label: PLUGIN_ADMIN.FOLDER_NAME
+      validate:
+        type: slug
+        required: true
+
+    route:
+      type: select
+      label: PLUGIN_ADMIN.PAGE
+      classes: fancy
+      '@data-options': '\Grav\Common\Page\Pages::parents'
+      '@data-default': '\Grav\Plugin\admin::route'
+      options:
+        '': PLUGIN_ADMIN.DEFAULT_OPTION_SELECT
+      validate:
+        required: true
+
+    name:
+      type: select
+      classes: fancy
+      label: PLUGIN_ADMIN.MODULAR_TEMPLATE
+      help: PLUGIN_ADMIN.PAGE_FILE_HELP
+      default: default
+      '@data-options': '\Grav\Common\Page\Pages::modularTypes'
+      validate:
+        required: true
+
+    modular:
+      type: hidden
+      default: 1
+      validate:
+        type: bool
+
+    blueprint:
+      type: blueprint