move PduEvent from services to core

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/pdu/builder.rs

@@ -0,0 +1,16 @@
+use std::{collections::BTreeMap, sync::Arc};
+
+use ruma::{events::TimelineEventType, EventId};
+use serde::Deserialize;
+use serde_json::value::RawValue as RawJsonValue;
+
+/// Build the start of a PDU in order to add it to the Database.
+#[derive(Debug, Deserialize)]
+pub struct PduBuilder {
+	#[serde(rename = "type")]
+	pub event_type: TimelineEventType,
+	pub content: Box<RawJsonValue>,
+	pub unsigned: Option<BTreeMap<String, serde_json::Value>>,
+	pub state_key: Option<String>,
+	pub redacts: Option<Arc<EventId>>,
+}