[#3] Move source code of testlib to src directory

Signed-off-by: Vladimir Domnich <v.domnich@yadro.com>

src/neofs_testlib/cli/neofs_adm/config.py

@@ -0,0 +1,24 @@
+from neofs_testlib.cli.cli_command import CliCommand
+from neofs_testlib.shell import CommandResult
+
+
+class NeofsAdmConfig(CliCommand):
+    def init(self, path: str = "~/.neofs/adm/config.yml") -> CommandResult:
+        """Initialize basic neofs-adm configuration file.
+
+        Args:
+            path (str):  path to config (default ~/.neofs/adm/config.yml)
+
+
+        Returns:
+            str: Command string
+
+        """
+        return self._execute(
+            "config init",
+            **{
+                param: param_value
+                for param, param_value in locals().items()
+                if param not in ["self"]
+            },
+        )