UC14 [S2]: Detect Flu Epidemic

This PR implements the second sub-flow of UC14. This allows a healthcare provider to log in and see if an influenza epidemic is/was occurring in a given zip code at a given time. To do this, the influenza detection algorithm from the requirements was implemented.

In order to run the tests, enter the following commands:

1. mvn install -DskipTests
2. mvn test -Dtest=ViewDiagnosisStatisticsActionTest
3. mvn test -Dtest=ViewDiagnosisStatisticsTest
4. mvn test -Dtest=OVDiagnosesTest

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assigned to @elengik2

added 4 commits

• ed8bd304 - fixed unit test bug in malaria epidemic
• b467550a - [tests] Split error flow test into four individual tests
• b1ab3549 - [refactoring] renamed influenza threshold method for clarity
• 36b5a7ce - [tests] fixed bug in test template

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All tests are passing, but there's a merge conflict^

Resolved, closing.

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approved this merge request

added 1 commit

• f691ed2e - [refactoring] Removed influenza_epidemic() method from standard_data() as it...

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added 84 commits

• f691ed2e...cabaec8d - 83 commits from branch master
• 11255812 - Merge branch 'master' into 'UC14'

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merged

mentioned in commit a55e02a1

Merge conflict fixed, everything looks good!