Move plugins to "sonar/desktop/plugins"

Summary:
Plugins moved from "sonar/desktop/src/plugins" to "sonar/desktop/plugins".

Fixed all the paths after moving.

New "desktop" folder structure:
- `src` - Flipper desktop app JS code executing in Electron Renderer (Chrome) process.
- `static` - Flipper desktop app JS code executing in Electron Main (Node.js) process.
- `plugins` - Flipper desktop JS plugins.
- `pkg` - Flipper packaging lib and CLI tool.
- `doctor` - Flipper diagnostics lib and CLI tool.
- `scripts` - Build scripts for Flipper desktop app.
- `headless` - Headless version of Flipper desktop app.
- `headless-tests` - Integration tests running agains Flipper headless version.

Reviewed By: mweststrate

Differential Revision: D20344186

fbshipit-source-id: d020da970b2ea1e001f9061a8782bfeb54e31ba0

desktop/plugins/sections/Models.js

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export type SectionComponentHierarchy = {|
+  type: string,
+  children: Array<SectionComponentHierarchy>,
+|};
+
+export type AddEventPayload = {|
+  id: string,
+  reason: string,
+  stack_trace: Array<string>,
+  skip_stack_trace_format?: boolean,
+  surface_key: string,
+  event_timestamp: number,
+  update_mode: number,
+  reentrant_count: number,
+  payload: ?Object,
+|};
+
+export type UpdateTreeGenerationHierarchyGenerationPayload = {|
+  hierarchy_generation_timestamp: number,
+  id: string,
+  reason: string,
+  tree?: Array<{
+    didTriggerStateUpdate?: boolean,
+    identifier: string,
+    isDirty?: boolean,
+    isReused?: boolean,
+    name: string,
+    parent: string | '',
+    inserted?: boolean,
+    removed?: boolean,
+    updated?: boolean,
+    unchanged?: boolean,
+    isSection?: boolean,
+    isDataModel?: boolean,
+  }>,
+|};
+
+export type UpdateTreeGenerationChangesetGenerationPayload = {|
+  timestamp: number,
+  tree_generation_id: string,
+  identifier: string,
+  type: string,
+  changesets: {
+    section_key: {
+      changesets: {
+        id: {
+          count: number,
+          index: number,
+          toIndex?: number,
+          type: string,
+          render_infos?: Array<String>,
+          prev_data?: Array<String>,
+          next_data?: Array<String>,
+        },
+      },
+    },
+  },
+|};
+
+export type UpdateTreeGenerationChangesetApplicationPayload = {|
+  changeset: {
+    section_key: {
+      changesets: {
+        id: {
+          count: number,
+          index: number,
+          toIndex?: number,
+          type: string,
+          render_infos?: Array<String>,
+          prev_data?: Array<String>,
+          next_data?: Array<String>,
+        },
+      },
+    },
+  },
+  type: string,
+  identifier: string,
+  timestamp: number,
+  section_component_hierarchy: SectionComponentHierarchy,
+  tree_generation_id: string,
+  payload: ?Object,
+|};
+
+export type TreeGeneration = {|
+  ...AddEventPayload,
+  ...$Shape<UpdateTreeGenerationHierarchyGenerationPayload>,
+  ...$Shape<UpdateTreeGenerationChangesetGenerationPayload>,
+  changeSets: Array<UpdateTreeGenerationChangesetApplicationPayload>,
+|};