change the generator of traceId to the 3-parts

[wenbindu]

update the traceid format.

[wu-sheng]

Why are you proposing this? This seems never to be discussed and have a conclusion.

[Superskyyy]

The code doesn't seem reasonable and it's a core change. Please elaborate the purpose/benefit of this? @wenbindu

[wenbindu]

Why are you proposing this? This seems never to be discussed and have a conclusion.

The trace id generator of java sdk is consist of three parts, like: 3bcc7c8bbf7e4697b006e44eb6a43ec6.904.16698607453910135, can we make an impletation of the python's generator under the same specification? Maybe, it's better for users to manage the traceid.

[wu-sheng]

You simulate Java's trace ID, but actually, this is not the same as Java's.