Add new Nutfile template for project builds

nut/templates/project/Nutfile

@@ -0,0 +1,12 @@
+build:
+  # name of the resulting build
+  # Example Build will become example_build.nut
+  name: Example Build
+
+  # name of the folder where the build will be outputted
+  # build procces will create this folder if it doesn't exist
+  # its used for build process and the final files will be outputted in this folder
+  buildFolder: build
+
+  # path to the entry point of the project, this is the file that will be executed when the build is run
+  entry: src/main.nut