feat: tokenizers (#429)

* feat: tokenizers

This reverts commit d5a4db8321.

* fix(inputs): #422

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>

---------

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>

crates/avante-tokenizers/Cargo.toml

@@ -0,0 +1,32 @@
+[lib]
+crate-type = ["cdylib"]
+
+[package]
+name = "avante-tokenizers"
+edition = { workspace = true }
+version = { workspace = true }
+rust-version = { workspace = true }
+license = { workspace = true }
+
+[lints]
+workspace = true
+
+[dependencies]
+mlua = { version = "0.10.0-beta.1", features = [
+  "module",
+  "serialize",
+], git = "https://github.com/mlua-rs/mlua.git", branch = "main" }
+tiktoken-rs = "0.5.9"
+tokenizers = { version = "0.20.0", features = [
+  "esaxx_fast",
+  "http",
+  "unstable_wasm",
+  "onig",
+], default-features = false }
+
+[features]
+lua51 = ["mlua/lua51"]
+lua52 = ["mlua/lua52"]
+lua53 = ["mlua/lua53"]
+lua54 = ["mlua/lua54"]
+luajit = ["mlua/luajit"]