Move tarantoolctl to test-run tool submodule

Moved tarantoolctl to test-run tool submodule repository as:

  <tarantool repository>/test-run/.tarantoolctl

Also set backward compability to use old path location:

  <tarantool repository>/test/.tarantoolctl

as its primary place.

.tarantoolctl

@@ -0,0 +1,15 @@
+-- Options for test-run tarantoolctl
+
+local workdir = os.getenv('TEST_WORKDIR')
+default_cfg = {
+    pid_file   = workdir,
+    wal_dir    = workdir,
+    memtx_dir  = workdir,
+    vinyl_dir  = workdir,
+    log        = workdir,
+    background = false,
+}
+
+instance_dir = workdir
+
+-- vim: set ft=lua :

lib/tarantool_server.py

@@ -767,7 +767,10 @@ def copy_files(self):
                     if (e.errno == errno.ENOENT):
                         continue
                     raise
-        shutil.copy('.tarantoolctl', self.vardir)
+        tntctl_file = '.tarantoolctl'
+        if not os.path.exists(tntctl_file):
+            tntctl_file = os.path.join(self.TEST_RUN_DIR, '.tarantoolctl')
+        shutil.copy(tntctl_file, self.vardir)
         shutil.copy(os.path.join(self.TEST_RUN_DIR, 'test_run.lua'),
                     self.vardir)
         # Need to use get here because of nondefault servers doesn't have ini.