feat: event based non-blocking logger

subcrates/zlog/src/query.rs

@@ -0,0 +1,14 @@
+use std::time::SystemTime;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Default)]
+pub enum LogQuery {
+    #[default]
+    All,
+    From(SystemTime),
+}
+
+impl LogQuery {
+    pub fn since(time: SystemTime) -> Self {
+        LogQuery::From(time)
+    }
+}