Diff/Changelog screen: Part 3: Stabilization and further extensions

[stanislaw]

• HEAD -> HEAD+ as a default example. screens/diff: improve the legend with "HEAD vs HEAD+" #1671
• Project Diff/Changelog: do not display included documents  #1757
• Project Diff/Changelog: Ignore changes in included grammars for now #1759
• Edge cases when running from another folder, e.g., error: Provided path is neither a single file or a folder: '/var/folders/sy/_sd67yzn5td5flr2_6vf73w40000gp/T/strictdoc_cache/git_sandbox/c8e88454bef857fc9ad7ae4d346e4c641a864157/../reqmgmt'
• Source path shall be input path when not specified explicitly #1723
• Diff: Modified nodes shall influence number of documents modified. #1890
• Support child relations.
• CLI: compare Git revisions, write an integration test for 0.0.48..0.0.49.
• Add file links.
• Nice to have: display the current branch along with HEAD.
• When a new requirement is added, its MID should be highlighted to green (see attached below).
• Case when Requirement is changed to Section with the same UID preserved.
• M: Changelog is printable as PDF.
• Changelog: Sort changes by documents.
• Basic end2end tests, at least for open the screen.
• Track moved nodes. When a requirement is moved but otherwise is not changed, indicate the requirement as changed.
• Free text - How to match section free texts when sections do not have UIDs? MIDs?
• project config: customizable published artifacts. How to publish several changelogs?
• M: (on hold) When a section without a free text is added, make it non-collapsible (without +-).

Backlog:

• M: Print fields one against another to preserve the layout.
• Add document grammar changes.

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