Fix profile & analyze

[jtraglia]

So make profile and make analyze have been broken since the file split. This PR makes the following changes:

• Run analyzer on each source file individually. Doesn't work when bundled together.
• Fix some allocation nits in the tests. There were some potential leaks that the analyzer pointed out.
  • I'm using more stack variables now. They are big, but not big enough to cause problems.
  • This includes storing the result & doing c_kzg_free before doing asserts.
• Fix commitments issue in one of the profiler functions.

To fix the broken test, please merge #474 first.

[asn-d6]

LGTM! Thanks!