Rearrange sessionbuilder and tracing

[javiermtorres]

This is meant to be a basis for discussion about a preliminary rearrangement of ort session config and auxiliary services like tracing.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 43.24324% with 21 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
encoderfile/src/transport/cli.rs	0.00%	13 Missing ⚠️
encoderfile-runtime/src/main.rs	0.00%	3 Missing ⚠️
encoderfile/src/runtime/state.rs	82.35%	3 Missing ⚠️
encoderfile/src/runtime/loader.rs	0.00%	2 Missing ⚠️

Files with missing lines	Coverage Δ
encoderfile/src/builder/model.rs	91.83% <100.00%> (ø)
encoderfile/src/dev_utils/mod.rs	97.95% <100.00%> (ø)
encoderfile/src/runtime/loader.rs	64.00% <0.00%> (ø)
encoderfile-runtime/src/main.rs	0.00% <0.00%> (ø)
encoderfile/src/runtime/state.rs	77.27% <82.35%> (+3.19%)	⬆️
encoderfile/src/transport/cli.rs	0.00% <0.00%> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.