Implemented thiserror for libcontainer - Part 4

[yihuaf]

This is the second to last PR. I converted most of the module in crate libcontainer to use thiserror. The missing 2 are container and workload. Both of these 2 requires a bit more thinking. The workload requires us to define the Executor type with an Error associated type. The container crate will be the main interface exposed by the libcontainer crate. It is easier to review these two changes in a different PR.

Note, some of the errors are lumped into a other error. Instead, we use tracing to log the context of the error at the source where the error happens. This is a contrast from previously using anyhow where the error context are stored in the error itself and logged at the top level.

Other tag along:

• Moved libseccomp related code in the process mod into a seccomp_listener mod, so we can centralize the libseccomp feature related code into a single place. Previously, we have to litter libseccomp feature switch all over the place.
• Moved some functions from utils if they are not shared by multiple module. This can simplify error handling so we don't have to create error in utils just for a single function.

[codecov-commenter]

Codecov Report

Merging #1912 (171b3c2) into main (91b476a) will decrease coverage by 1.90%.
The diff coverage is 36.78%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1912      +/-   ##
==========================================
- Coverage   66.96%   65.06%   -1.90%     
==========================================
  Files         126      127       +1     
  Lines       14164    14637     +473     
==========================================
+ Hits         9485     9524      +39     
- Misses       4679     5113     +434     

[utam0k]

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