feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

bridges/testing/scripts/sync-exit.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -e
+
+# every network adds a char to the file, let's remove ours
+truncate -s -1 $TEST_FOLDER/exit-sync
+
+# when all chars are removed, then our test is done
+while true
+do
+    if [ `stat --printf="%s" $TEST_FOLDER/exit-sync` -eq 0 ]; then
+        exit
+    fi
+    sleep 100
+done