Run queue latency

[thiagoftsm]

This is the first eBPF program related to latency, the main goal of this eBPF program is to measure the server workload.

It is also useful to select the correct priority of the processes running.

To bring this feature, we will attach kprobes for:

• ttwu_do_wakeup
• wake_up_new_task
• finish_task_switch

We will store information using histograms, the bins of the histograms will define the number of times that a process ran during an interval of time.