[MOB-4852] reorganization

[roninopf]

🔹 Jira Ticket(s) if any

• MOB-4852

✏️ Description

• split out IterableUtil
• reorganizes some other files
• no functional changes

[codecov]

Codecov Report

Merging #471 (77feaba) into master (e6c4349) will decrease coverage by 0.01%.
The diff coverage is 71.81%.

@@            Coverage Diff             @@
##           master     #471      +/-   ##
==========================================
- Coverage   62.48%   62.47%   -0.02%     
==========================================
  Files          66       67       +1     
  Lines        3916     3917       +1     
  Branches      454      453       -1     
==========================================
  Hits         2447     2447              
- Misses       1230     1233       +3     
+ Partials      239      237       -2     

Impacted Files	Coverage Δ
...erable/iterableapi/IterableInAppMemoryStorage.java	56.25% <ø> (ø)
...ava/com/iterable/iterableapi/IterableUtilImpl.java	70.45% <70.45%> (ø)
...iterable/iterableapi/IterableInAppFileStorage.java	80.00% <76.19%> (ø)
...in/java/com/iterable/iterableapi/IterableUtil.java	70.00% <100.00%> (-0.10%)	⬇️
.../com/iterable/iterableapi/IterableRequestTask.java	79.47% <0.00%> (-2.19%)	⬇️
...ain/java/com/iterable/iterableapi/IterableApi.java	61.61% <0.00%> (+0.24%)	⬆️
...com/iterable/iterableapi/IterableInAppManager.java	87.14% <0.00%> (+0.47%)	⬆️
.../iterable/iterableapi/IterableActivityMonitor.java	95.08% <0.00%> (+3.27%)	⬆️

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[Ayyanchira]

Is there any slicing by certain functionality that the files are split up?