Split module session-storage into api and impl.

libraries/session-storage/impl/src/main/sqldelight/io/element/android/libraries/matrix/session/SessionData.sq

@@ -0,0 +1,21 @@
+CREATE TABLE SessionData (
+    userId TEXT NOT NULL PRIMARY KEY,
+    deviceId TEXT NOT NULL,
+    accessToken TEXT NOT NULL,
+    refreshToken TEXT,
+    homeserverUrl TEXT NOT NULL,
+    isSoftLogout INTEGER AS Boolean NOT NULL DEFAULT 0,
+    slidingSyncProxy TEXT
+);
+
+selectFirst:
+SELECT * FROM SessionData LIMIT 1;
+
+selectByUserId:
+SELECT * FROM SessionData WHERE userId = ?;
+
+insertSessionData:
+INSERT INTO SessionData(userId, deviceId, accessToken, refreshToken, homeserverUrl, isSoftLogout, slidingSyncProxy) VALUES ?;
+
+removeSession:
+DELETE FROM SessionData WHERE userId = ?;