feat: allow any dimension value for ParseAnalytics

[cbaker6]

New Pull Request Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am creating this PR in reference to an issue.

Issue Description

Dimension values currently can only be String type. This use to be the requirement for the original Parse Server, but some analytics adapters can support types other than String. The Swift Client should allow any type of dimension value.

Also the developer should be responsible for requesting tracking authorization when sending analytics to other companies instead of the SDK.

Related issue: #n/a

Approach

Let the OS and developer decide if app tracking authorization is required when using ParseAnalytics. ParseAnalytics can now take any Codable value in its' dimensions instead of just strings. Added a new property date to ParseAnalytics. The at property will be deprecated in ParseSwift 5.0.0, so developers should switch to date. ParseAnalytics can now be properly decoded after encoding with a JSONEncoder. This is useful if ParseAnalytics type need to be stored locally and sent to the server later.

TODOs before merging

• [x] Add tests
• [x] Add entry to changelog
• [x] Add changes to documentation (guides, repository pages, in-code descriptions)

[parse-github-assistant[bot]]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[codecov[bot]]

Codecov Report

Merging #341 (4caeb51) into main (5307210) will decrease coverage by 0.02%. The diff coverage is 96.96%.

@@            Coverage Diff             @@
##             main     #341      +/-   ##
==========================================
- Coverage   85.19%   85.16%   -0.03%     
==========================================
  Files         114      114              
  Lines       12208    12195      -13     
==========================================
- Hits        10400    10386      -14     
- Misses       1808     1809       +1     

Impacted Files	Coverage Δ
Sources/ParseSwift/Coding/ParseEncoder.swift	74.91% <ø> (ø)
...es/ParseSwift/LiveQuery/ParseLiveQuery+async.swift	72.72% <ø> (ø)
.../ParseSwift/LiveQuery/ParseLiveQuery+combine.swift	72.72% <ø> (ø)
Sources/ParseSwift/LiveQuery/ParseLiveQuery.swift	72.92% <ø> (-0.60%)	:arrow_down:
Sources/ParseSwift/Types/ParseACL.swift	89.91% <50.00%> (+2.25%)	:arrow_up:
Sources/ParseSwift/Objects/ParseRole.swift	100.00% <100.00%> (ø)
...ources/ParseSwift/Types/ParseAnalytics+async.swift	90.47% <100.00%> (+0.47%)	:arrow_up:
Sources/ParseSwift/Types/ParseAnalytics.swift	97.12% <100.00%> (-0.33%)	:arrow_down:
Sources/ParseSwift/Objects/ParseUser.swift	83.00% <0.00%> (-0.18%)	:arrow_down:
... and 1 more

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