✨🧪💩➕➖ workspace, vanth, varo: Add varo crate and Root struct, update dependencies

- Replaced `bitcode` crate with `bincode` in workspace dependencies.
- Added new crate `varo` for random optimization with `Varo` trait, `Distribution`, and `optimize` function.
- Defined `Root` world struct placeholder in `vanth` crate.
- Created `reference.rs` test module in `vanth` with custom components and events.
- Added TODOs in `varo` for RNG implementation and `optimize` function.

Cargo.lock

@@ -1373,7 +1373,7 @@ checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
  "libc",
  "rand_chacha",
- "rand_core",
+ "rand_core 0.6.4",
 ]
 
 [[package]]
@@ -1383,7 +1383,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.6.4",
 ]
 
 [[package]]
@@ -1395,6 +1395,12 @@ dependencies = [
  "getrandom 0.2.16",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.13"
@@ -1417,7 +1423,7 @@ dependencies = [
  "num-traits",
  "pkcs1",
  "pkcs8",
- "rand_core",
+ "rand_core 0.6.4",
  "signature",
  "spki",
  "subtle",
@@ -1548,7 +1554,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
 dependencies = [
  "digest",
- "rand_core",
+ "rand_core 0.6.4",
 ]
 
 [[package]]
@@ -2071,6 +2077,20 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "varo"
+version = "0.1.0"
+dependencies = [
+ "blake3",
+ "digest",
+ "rand_core 0.9.3",
+ "serde",
+ "serde_json",
+ "tempfile",
+ "vanth",
+ "vanth_derive",
+]
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"