Upgrade centrallix-lib Tests

[Lightning11wins]

This PR will:

• Improves the centrallix-lib test driver.
  • Lockups now take 5 seconds without Valgrind and 10 with valgrind.
  • Tests that "fail" due to running too fast now print PASS ??? and give a clear warning.
• Add test_utils.h to make tests easier to read and write.
  • Includes EXPECT functions for clear assertions.
  • Includes a function to automatically loop tests until a time limit is reached.
• Rewrite tests to only loop as many times as needed.
  • This change alone reduced time required to run the test suite by 40%.
  • When using Valgrind, this reduced the time from 20-25m down to 95 seconds.
• Tests run in parallel for large performance improvements.
  • Outputs are accumulated in the background so they can be printed in order.
  • To disable, export TESTJOBS=1.
• Fix make valtest to allow using valgrind on tests.
• Fix some tests that previously failed (e.g. memstr-00).
• Add several tests for centrallix-lib modules and functions that did not previously have tests.

GitHub Relationships

• Replaces Expand Centrallix-lib Tests #80
• Depends on Add centrallix-lib Utilities #130

Greptile Summary