Write build output of app inside project dir

Author: xkons

.gitignore

@@ -1,7 +1,7 @@
 # See http://help.github.com/ignore-files/ for more about ignoring files.
 
 # compiled output
-/dist
+/**/dist
 /tmp
 /out-tsc
 /.angular

angular.json

@@ -12,7 +12,7 @@
         "build": {
           "builder": "@angular-devkit/build-angular:browser",
           "options": {
-            "outputPath": "dist/train-platform",
+            "outputPath": "projects/train-platform/dist",
             "index": "projects/train-platform/src/index.html",
             "main": "projects/train-platform/src/main.ts",
             "polyfills": "projects/train-platform/src/polyfills.ts",