JsonSerializer

JSON Serializer in BSON format as defined by http://bsonspec.org/spec.html. This is not fully compatible with BSON spec, where the root must be a document/JsObject. In contrast, the root can be any JsValue in our implementation. Correspondingly, the root will always has the type byte as the first byte.

Not Multi-threading safe. Each thread should have its own BsonSerializer instance. Data size limit to 10MB by default.

Although JsTime/JsDateTime can be represented to nanosecond precision, we don't store the nano-of-second field to save the space. To preserve the high precision of time, JsTimestamp should be employed and of course consumes more space.