Allow users to select which process to enable trace-profiling

[dxsup]

Is your feature request related to a problem? Please describe.

Now when users enable trace-profiling, all the processes on the host are profiled. The motivation to allow users to select which process to enable trace-profiling is:

• Users only care about part of the processes and don't want to affect others.
• More processes, more events, and more resources are consumed.

Describe the solution you'd like

To implement the feature, the following modifications should be made:

• Users can see the processes on the host when enabling trace-profiling from the front end and can select some of them.
• Collector provides an API that accepts PID or container ID or other identification to enable trace-profiling.
• The drivers can classify which processes are profiled.