added utility for symlinks creation before build

prebuild.py

@@ -0,0 +1,15 @@
+# pre-build script for symbolic lynks generation
+
+import os
+import os.path
+
+example_lib_dir = "examples/espcamlib"
+dst = "examples/espcamlib/src"
+src = "../../src"
+
+os.makedirs(example_lib_dir, 0o755, True)
+
+if not os.path.exists(dst):
+    os.symlink(src, dst)
+
+print("Symbolic link created successfully")