Add new option for bytes (#26)

* add

* add

* add

* add

* add

* Fix tests

* Delete test.py

* a

* add

* Update Cargo.toml

Author: baseplate-admin

Cargo.toml

@@ -2,7 +2,7 @@
 name = "resvg_py"
 version = "0.1.4"
 edition = "2021"
-rust-version = "1.80.0"
+rust-version = "1.78.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [lib]