Add Maestro tests for create & join rooms (#472)

I created 2 additional test users to use them as MXID we lookup during room creation.

I.e. we will not login as those users, it's just 2 known MXIDs that we know exist so we can look them up.

- https://github.com/vector-im/element-x-android/issues/409

.maestro/tests/roomList/createAndDeleteRoom.yaml

@@ -0,0 +1,33 @@
+appId: ${APP_ID}
+---
+# Purpose: Test the creation and deletion of a room
+- tapOn: "Create a new conversation or room"
+- tapOn: "New room"
+- tapOn: "Search for someone"
+- inputText: ${INVITEE1_MXID}
+- tapOn:
+    text: ${INVITEE1_MXID}
+    index: 1
+- tapOn: "Next"
+- tapOn: "e.g. your project name"
+- inputText: "aRoomName"
+- tapOn: "What is this room about?"
+- inputText: "aRoomTopic"
+- tapOn: "Create"
+- takeScreenshot: build/maestro/320-createAndDeleteRoom
+- tapOn: "aRoomName"
+- tapOn: "Invite people"
+# assert there's 1 memeber and 1 invitee
+- tapOn: "Search for someone"
+- inputText: ${INVITEE2_MXID}
+- tapOn:
+    text: ${INVITEE2_MXID}
+    index: 1
+- tapOn: "Send"
+- tapOn: "Back"
+- tapOn: "aRoomName"
+- tapOn: "People"
+# assert there's 1 memeber and 2 invitees
+- tapOn: "Back"
+- tapOn: "Leave room"
+- tapOn: "Leave"