split euler and maxwell to separate crates

webfront/Cargo.toml

@@ -14,3 +14,5 @@ console_error_panic_hook = "0.1.6"
 wee_alloc = "0.4.5"
 sbp = { path = "../sbp", features = ["f32"] }
 ndarray = "0.13.0"
+euler = { path = "../euler" }
+maxwell = { path = "../maxwell" }

webfront/lib.rs

@@ -1,6 +1,8 @@
 use wasm_bindgen::prelude::*;
 
-use sbp::{euler, maxwell, operators};
+use euler;
+use maxwell;
+use sbp::operators;
 
 #[cfg(feature = "wee_alloc")]
 #[global_allocator]