Added fuzz test log reseults

[zhuchcn]

Description

This is the last batch fuzz test results

3 issues fixed in this PR:

1. When creating peptide cleavage graph, when a variant bubble is processed and cleaved, we need to identify the correct downstream connecting node(s) to put them into the next iteration. While doing that, only in-frame nodes should be used. However, the downstream node may be hybride, meaning it spans over multiple reading frames. So we should compare the reading frame index of the last segment of the node rather than the first.
2. When finding variant peptides from PCG from circRNA, we need to inspect the last nucleotide of the upstream node(s) and the first nucleotide of the downstream node(s) to take into consideration of any cleavage altering variants. However the upstream node variant with downstream_cleavage_altering and the downstream node variant with upstream_cleavage_altering should not be considered, because they are carried over manually.
3. When creating peptide cleavage graph, if the node has exactly 1 cleavage site and it has multiple incoming node, a "merge-forward" should be used. However the downstream node was not returned correctly.

Closes #...

Checklist

• [X] This PR does NOT contain PHI or germline genetic data. A repo may need to be deleted if such data is uploaded. Disclosing PHI is a major problem.
• [X] This PR does NOT contain molecular files, compressed files, output files such as images (e.g. .png, .jpeg), .pdf, .RData, .xlsx, .doc, .ppt, or other non-plain-text files. To automatically exclude such files using a .gitignore file, see here for example.
• [X] I have read the code review guidelines and the code review best practice on GitHub check-list.
• [X] The name of the branch is meaningful and well formatted following the standards, using [AD_username (or 5 letters of AD if AD is too long)]-[brief_description_of_branch].
• [X] I have added the major changes included in this pull request to the CHANGELOG.md under the next release version or unreleased, and updated the date.
• [X] All test cases passed locally.

[zhuchcn]

I restarted the fuzz test a couple of times because the previous fix was not successful and also new issues found. It's running again now with 28,865 finished. Will merge this shortly if it maintains all pass.

[zhuchcn]

51501/51501 passed. Merging now.

[lydiayliu]

Should i start CPCG? a release would be ideal!