Rollback removing paths from tsconfig.json

Summary: Returning back paths config in tsconfig.json which I removed recently. Without them typescript compilation is required when exported APIs changed in dependency packages, e.g. in "flipper-plugin", otherwise lint/tests fails. So it's better to keep them for convenience.

Reviewed By: mweststrate

Differential Revision: D27619748

fbshipit-source-id: bb5929526ee2bf6bd06a5f15dbf898b7ca6deea7

desktop/tsconfig.base.json

@@ -23,6 +23,18 @@
     "allowJs": true,
     "rootDir": ".",
     "paths": {
+      "flipper": [
+        "./app/src"
+      ],
+      "flipper-plugin": [
+        "./flipper-plugin/src"
+      ],
+      "eslint-plugin-flipper": [
+        "./eslint-plugin-flipper/src"
+      ],
+      "flipper-*": [
+        "./*/src"
+      ],
       "@js-shared/*": [
         "../../js-shared/*"
       ]