eossr upload unique function

• unique function to upload to the ossr regardless of new record or new version
• unit test
• update doc and snippets
• check if the record does not already exist in case record id not passed
• remove previous scripts and snippets

eossr/api/zenodo/tests/test_zenodo.py

@@ -66,7 +66,7 @@ class TestZenodoAPINoToken(unittest.TestCase):
         assert isinstance(self.zenodo, ZenodoAPI)
         assert self.zenodo.api_url == 'https://zenodo.org/api'
         assert self.zenodo.access_token == self.token
-        assert self.zenodo.root_dir == ROOT_DIR
+        assert self.zenodo.root_dir == Path(ROOT_DIR)
         assert isinstance(self.zenodo.root_dir, (Path, str))