Add examples movies dataset

.gitignore

 __pycache__/
 .ipynb_checkpoints/
 *.ipynb
+/examples

examples.dvc

+md5: 56eb439ed7dbba854ade45ff5ed80cae
+frozen: true
+deps:
+- path: data/examples
+  repo:
+    url: git@gitlab.sauerburger.com:frank/movie-recommender.git
+    rev_lock: f6c4fd2096cd4e0e526c11382ac734849e07332d
+outs:
+- md5: 8e24abb1f729dd400a8cfb50e87ce940.dir
+  size: 8248934
+  nfiles: 4
+  path: examples