Added executable, added B64 encoding

Signed-off-by: Louis Hollingworth <louis@hollingworth.nl>

Cargo.lock

@@ -1,6 +1,12 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
+
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
 name = "cfg-if"
@@ -93,8 +99,9 @@ dependencies = [
 
 [[package]]
 name = "suid"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
+ "base64",
  "rand",
  "tracing",
 ]