initial frontend

Cargo.lock

@@ -798,6 +798,12 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "0.2.12"
@@ -1485,6 +1491,7 @@ dependencies = [
  "chrono",
  "derive_more 1.0.0",
  "fern",
+ "hex",
  "log",
  "prost",
  "rand",