Testing if interning pubkeys and ids help save some memory.

app/src/main/java/com/vitorpamplona/amethyst/service/model/EventFactory.kt

@@ -13,6 +13,34 @@ class EventFactory {
             content: String,
             sig: String,
             lenient: Boolean
+        ): Event {
+            val internedTags = tags.map {
+                it.map {
+                    it.intern()
+                }
+            }
+
+            return internedCreate(
+                id = id.intern(),
+                pubKey = pubKey.intern(),
+                createdAt = createdAt,
+                kind = kind,
+                tags = internedTags,
+                content = content,
+                sig = sig,
+                lenient = lenient
+            )
+        }
+
+        fun internedCreate(
+            id: String,
+            pubKey: String,
+            createdAt: Long,
+            kind: Int,
+            tags: List<List<String>>,
+            content: String,
+            sig: String,
+            lenient: Boolean
         ) = when (kind) {
             AppDefinitionEvent.kind -> AppDefinitionEvent(id, pubKey, createdAt, tags, content, sig)
             AppRecommendationEvent.kind -> AppRecommendationEvent(id, pubKey, createdAt, tags, content, sig)