added bootstrap and utils

src/util.py

@@ -5,3 +5,12 @@ def log(data):
     with open("logs.log", "a") as fl:
         fl.write(str(data))
 
+
+def string_to_bin(tox_id):
+    return tox_id.decode("hex")
+
+
+def bin_to_string(raw_id):
+    res = ''.join('{:02x}'.format(ord(x)) for x in raw_id)
+    return res.upper()
+