chore(acir)!: rename term_multiplication to push_multiplication_term

[TomAFrench]

chore(acir)!: rename term_addition to push_addition_term

Related issue(s)

Resolves one item from #53

term_multiplication() and term_addition() are not clear and should be renamed into push_multiplication_term() and push_linear_term()

Description

Summary of changes

These two methods have been renamed to be clearer about what they do.

This is a relatively minor change but is breaking. We should delay merging until we are going to have a breaking release.

Dependency additions / changes

(If applicable.)

Test additions / changes

(If applicable.)

Checklist

• I have tested the changes locally.
• I have formatted the changes with Prettier and/or cargo fmt with default settings.
• I have linked this PR to the issue(s) that it resolves.
• I have reviewed the changes on GitHub, line by line.
• I have ensured all changes are covered in the description.

Additional context

(If applicable.)