Add spec tags for flags and channel modes for Objects, and for ObjectMessage class

Based on the spec added in [1], and updates to the spec made in [2] and [3]

[1] ably/specification#298
[2] ably/specification#327
[3] ably/specification#328

Author: VeskeR

src/common/lib/types/protocolmessage.ts

@@ -169,7 +169,7 @@ class ProtocolMessage {
   /**
    * This will be undefined if we skipped decoding this property due to user not requesting Objects functionality — see {@link fromDeserialized}
    */
-  state?: ObjectsPlugin.ObjectMessage[];
+  state?: ObjectsPlugin.ObjectMessage[]; // TR4r
   auth?: unknown;
   connectionDetails?: Record<string, unknown>;
   params?: Record<string, string>;

src/common/lib/types/protocolmessagecommon.ts

@@ -1,6 +1,7 @@
 // constant definitions that can be imported by anyone without worrying about circular
 // deps
 
+// TR2
 export const actions = {
   HEARTBEAT: 0,
   ACK: 1,
@@ -31,6 +32,7 @@ Object.keys(actions).forEach(function (name) {
   ActionName[(actions as { [key: string]: number })[name]] = name;
 });
 
+// TR3
 export const flags: { [key: string]: number } = {
   /* Channel attach state flags */
   HAS_PRESENCE: 1 << 0,

src/common/lib/util/utils.ts

@@ -285,8 +285,8 @@ export function inspectBody(body: unknown): string {
  * Returns the byte size of the provided data based on the spec:
  * - TM6a - size of the string is byte length of the string
  * - TM6c - size of the buffer is its size in bytes
- * - OD3c - size of a number is 8 bytes
- * - OD3d - size of a boolean is 1 byte
+ * - OD3d - size of a number is 8 bytes
+ * - OD3b - size of a boolean is 1 byte
  */
 export function dataSizeBytes(data: string | number | boolean | Bufferlike): number {
   if (Platform.BufferUtils.isBuffer(data)) {