feat: Add Default implementation for Harmony Id along with documentation.

This Id implementation is optimized for ease of use. Ids are prefixed with the unix epoch and suffixed with 7 alphanumeric characters. But Ids can also contain any String the user wants to pass it

Cargo.lock

@@ -1431,6 +1431,7 @@ dependencies = [
  "harmony_macros",
  "harmony_types",
  "helm-wrapper-rs",
+ "hex",
  "http 1.3.1",
  "inquire",
  "k3d-rs",
@@ -1442,6 +1443,7 @@ dependencies = [
  "non-blank-string-rs",
  "opnsense-config",
  "opnsense-config-xml",
+ "rand 0.9.1",
  "reqwest 0.11.27",
  "russh",
  "rust-ipmi",
@@ -1566,6 +1568,12 @@ 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 = "hex-literal"
 version = "0.4.1"