#436: filter appliance based on value

[joao-conde]

Issue

• https://github.com/ripe-tech/ripe-pulse/issues/436

Decisions

• sometimes we may not want to apply a filter (e.g. orders:in:VALUE does not make sense to use if the value is not a number) and these conditional functions will add the filter or not based on the returned value
• specially important for filters that take only certain types of values and may error otherwise

[github-actions]

Pull Request Test Coverage Report for Build 7008467485

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 89.323%

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Totals
Change from base Build 5324368887:	-0.1%
Covered Lines:	455
Relevant Lines:	487

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💛 - Coveralls

[github-actions]

Pull Request Test Coverage Report for Build 7008811309

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.3%) to 89.112%

---

Totals
Change from base Build 5324368887:	-0.3%
Covered Lines:	455
Relevant Lines:	487

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 7008811309

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 89.323%

---

Totals
Change from base Build 5324368887:	-0.1%
Covered Lines:	455
Relevant Lines:	487

---

💛 - Coveralls