Add remaining RQAlpha extension helpers

crates/fidc-core/src/event_bus.rs

@@ -4,6 +4,11 @@ use crate::events::{ProcessEvent, ProcessEventKind};
 
 type ProcessEventListener = Box<dyn FnMut(&ProcessEvent)>;
 
+pub trait BacktestProcessMod {
+    fn name(&self) -> &str;
+    fn install(&mut self, bus: &mut ProcessEventBus);
+}
+
 #[derive(Default)]
 pub struct ProcessEventBus {
     listeners: BTreeMap<ProcessEventKind, Vec<ProcessEventListener>>,
@@ -42,6 +47,13 @@ impl ProcessEventBus {
         self.any_listeners.push(Box::new(listener));
     }
 
+    pub fn install_mod<M>(&mut self, module: &mut M)
+    where
+        M: BacktestProcessMod,
+    {
+        module.install(self);
+    }
+
     pub fn publish(&mut self, event: &ProcessEvent) {
         if let Some(listeners) = self.listeners.get_mut(&event.kind) {
             for listener in listeners {