Add plural to change_bounds and add change_constraints

[stelmo]

Add a plural variant to change_constraint and give change_bounds kwargs that end on s for plural grammar

[codecov[bot]]

Codecov Report

Base: 88.49% // Head: 88.19% // Decreases project coverage by -0.30% :warning:

Coverage data is based on head (595dd04) compared to base (979d57c). Patch coverage: 61.11% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## next #760 +/- ## ========================================== - Coverage 88.49% 88.19% -0.30% ========================================== Files 88 88 Lines 2103 2110 +7 ========================================== Hits 1861 1861 - Misses 242 249 +7 ``` | [Impacted Files](https://codecov.io/gh/LCSB-BioCore/COBREXA.jl/pull/760?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore) | Coverage Δ | | |---|---|---| | [src/analysis/modifications/generic.jl](https://codecov.io/gh/LCSB-BioCore/COBREXA.jl/pull/760?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore#diff-c3JjL2FuYWx5c2lzL21vZGlmaWNhdGlvbnMvZ2VuZXJpYy5qbA==) | `60.00% <0.00%> (-18.27%)` | :arrow_down: | | [src/macros/change\_bounds.jl](https://codecov.io/gh/LCSB-BioCore/COBREXA.jl/pull/760?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore#diff-c3JjL21hY3Jvcy9jaGFuZ2VfYm91bmRzLmps) | `100.00% <ø> (ø)` | | | [src/reconstruction/MatrixCoupling.jl](https://codecov.io/gh/LCSB-BioCore/COBREXA.jl/pull/760?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore#diff-c3JjL3JlY29uc3RydWN0aW9uL01hdHJpeENvdXBsaW5nLmps) | `96.05% <100.00%> (ø)` | | | [src/reconstruction/MatrixModel.jl](https://codecov.io/gh/LCSB-BioCore/COBREXA.jl/pull/760?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore#diff-c3JjL3JlY29uc3RydWN0aW9uL01hdHJpeE1vZGVsLmps) | `97.01% <100.00%> (ø)` | | | [src/reconstruction/ObjectModel.jl](https://codecov.io/gh/LCSB-BioCore/COBREXA.jl/pull/760?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore#diff-c3JjL3JlY29uc3RydWN0aW9uL09iamVjdE1vZGVsLmps) | `81.61% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=LCSB-BioCore)

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