Selective build

[cristiano-belloni]

Implement:

• --changed
• --compareBranch
• --ancestors
• --descendants

for modular build. See the updated documentation and tests for an in-depth description.

[changeset-bot]

🦋 Changeset detected

Latest commit: d353a7b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
modular-scripts	Minor

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[coveralls]

Coverage decreased (-0.1%) to 33.499% when pulling bc1019d on feature/selective-build-changed into f79847a on main.

[coveralls]

Coverage decreased (-0.3%) to 33.313% when pulling d353a7b on feature/selective-build-changed into 644030d on main.

[ayseenver]

Are the packages a/b/c/d for testing? Do you want to commit them into main?

[AlbertoBrusa]

Left a few comments just around general clarity/comments/docs, the code looks good :)