reduce compile time

disabling LTO and optimizing for size cuts compile time almost in half,
but increases the binary size from 2.1 to 2.5 MB.
this tradeoff is worth it.
performance is unaffected

Cargo.toml

@@ -17,8 +17,8 @@ serde = "*"
 pacdef_macro = {path = "pacdef_macro/"}
 
 [profile.release]
-lto = "fat"
-codegen-units = 1
+lto = "off"
+opt-level = "z"
 strip = true
 
 [[bin]]