GH-63: Fix CodeCov, add Unit Tests

[tiemonl]

Closes #63

[tiemonl]

Some notes on this PR.

• jacoco/testDebugUnitTest.exec was never getting created therefore tests couldn't be read. To solve this, introducing Android-JUnit5 plug in alleviated that issue.
• jacocoTestReport provides multiple reports. Returning the report app instead of debugAndroidTest then showed us our actual code coverage in jacoco.
  • As a result of this, the circleci report path needed to be changed as well.

[codecov[bot]]

Codecov Report

Merging #74 into master will increase coverage by 1.02%. The diff coverage is 3.84%.

@@            Coverage Diff            @@
##           master     #74      +/-   ##
=========================================
+ Coverage       0%   1.02%   +1.02%     
=========================================
  Files          29      18      -11     
  Lines         395     292     -103     
  Branches       49      25      -24     
=========================================
+ Hits            0       3       +3     
+ Misses        395     287     -108     
- Partials        0       2       +2

Impacted Files	Coverage Δ
...rc/main/kotlin/io/imhungry/maps/vm/MapViewModel.kt	0% <ø> (ø)	:arrow_up:
...in/kotlin/io/imhungry/settings/SettingsActivity.kt	0% <ø> (ø)	:arrow_up:
.../main/kotlin/io/imhungry/common/ui/BaseActivity.kt	0% <0%> (ø)	:arrow_up:
...rc/main/kotlin/io/imhungry/home/ui/HomeActivity.kt	0% <0%> (ø)	:arrow_up:
...kotlin/io/imhungry/launcher/ui/LauncherActivity.kt	0% <0%> (ø)	:arrow_up:
...src/main/kotlin/io/imhungry/maps/ui/MapActivity.kt	0% <0%> (ø)	:arrow_up:
...lin/io/imhungry/maps/ui/adapters/MapItemAdapter.kt	0% <0%> (ø)	:arrow_up:
app/src/main/kotlin/io/imhungry/login/LoginUtil.kt	15.78% <33.33%> (+15.78%)	:arrow_up:
...io/imhungry/navigation/BottomNavigationFragment.kt	0% <0%> (ø)	:arrow_up:
... and 8 more

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