[scudo] Support printing the status of cached blocks

The output looks like,
  Stats: SharedTSDs: 2 available; total 8
    Shared TSD[0]:
      00 (    64): cached:   10 max:   26
      32 ( 65552): cached:    1 max:    2
    Shared TSD[1]:
      No block is cached.

Differential Revision: https://reviews.llvm.org/D148755

GitOrigin-RevId: c5c0f9b400e55553a0c3ff281b3d172ea488fc37
5 files changed