Split project into three workspaces: hel (the library), helcli (the tool) and helwasm (the wasm code). Move wasm incompatible code to extra modules in utils.rs to be implementable separately for wasm.

helcli/src/bin/hel.rs

@@ -0,0 +1,12 @@
+extern crate hel;
+
+use hel::structs::init;
+
+pub fn main() {
+    let mut lkread = match init() { Some(r) => r, None => { return; } };
+
+    while lkread.read().eval().print() {
+        lkread.refresh();
+    }
+    lkread.quit();
+}