Restructure CLI to use subcommands

Cargo.lock

@@ -311,6 +311,20 @@ name = "serde"
 version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e8c8cf938e98f769bc164923b06dce91cea1751522f46f8466461af04c9027d"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.164"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9735b638ccc51c28bf6914d90a2e9725b377144fc612c49a611fddd1b631d68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
 
 [[package]]
 name = "serde_json"
@@ -368,6 +382,7 @@ dependencies = [
  "bitreader",
  "clap",
  "openssl",
+ "serde",
  "serde_json",
  "thiserror",
 ]