Begin altering initialize to use a type-safe DSL

[fractalwrench]

Goal

Builds on #1291 by continuing to convert initialize to use a type-safe DSL. The last commit contains the changes for this PR specifically - the first commit contains code that can be reviewed separately in #1291.

I've converted everything apart from OtelRumConfig to use a type-safe DSL called OpenTelemetryConfiguration. OtelRumConfig will be converted in a future PR that I've yet to complete. An example of how this looks in practice can be found below:

fun exampleUsage(application: Application) {
    OpenTelemetryRumInitializer.initialize(application) {
        httpExport {
            baseUrl = "http://localhost:4317"
            baseHeaders = mapOf("key" to "value")
            spans {
                url = "http://localhost:4318"
                headers = mapOf("key" to "override")
            }
        }
        instrumentations {
            anrReporter {
                enabled(true)
                addAttributesExtractor { _, _ ->
                    Attributes.empty()
                }
            }
        }
        session {
            maxLifetime = 10.minutes
        }
    }
}

[codecov]

Codecov Report

❌ Patch coverage is 74.54545% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.97%. Comparing base (c0d65cf) to head (d99d6a6).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...metry/android/agent/OpenTelemetryRumInitializer.kt	57.14%	6 Missing ⚠️
...metry/android/agent/dsl/HttpExportConfiguration.kt	80.00%	5 Missing ⚠️
...ry/android/agent/dsl/OpenTelemetryConfiguration.kt	66.66%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1292      +/-   ##
==========================================
+ Coverage   63.87%   63.97%   +0.09%     
==========================================
  Files         150      154       +4     
  Lines        3070     3103      +33     
  Branches      305      304       -1     
==========================================
+ Hits         1961     1985      +24     
- Misses       1028     1038      +10     
+ Partials       81       80       -1     

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[LikeTheSalad]

Looks great, cheers!

[LikeTheSalad]

Maybe a discussion for another PR, though I'm curious about the decision process to decide which parameters are left on the initializer method's arguments, vs which ones are placed into the Configuration dsl?

[fractalwrench]

@LikeTheSalad I'd like to move basically every parameter apart from Application onto the Configuration DSL. I wanted to keep the PR size small particularly as other folks had PRs in flight, and should be able to open another PR towards the end of the week that moves the rest.

[LikeTheSalad]

Sounds good to me, thanks for the clarification.

[fractalwrench]

I've moved the rest over in #1313