chore: update deps and improve readability of Cargo.toml

[de-sh]

Fixes #XXXX.

Description

Updates datafusion to v44.0.0(changelog: v43.0.0, v44.0.0) and object_store to v0.11.2(changelog).

As a maintainability improvement this PR also organizes the crates according to usage.

---

This PR has:

• been tested to ensure log ingestion and log query works.
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added documentation for new or modified features or behaviors.

[coveralls]

Pull Request Test Coverage Report for Build 12669074305

Details

• 10 of 18 (55.56%) changed or added relevant lines in 6 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.04%) to 12.388%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/query/mod.rs	0	1	0.0%
src/query/stream_schema_provider.rs	0	1	0.0%
src/storage/azure_blob.rs	0	2	0.0%
src/storage/localfs.rs	0	2	0.0%
src/storage/s3.rs	0	2	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/storage/localfs.rs	1	0.0%

Totals
Change from base Build 12669046191:	0.04%
Covered Lines:	2415
Relevant Lines:	19494

---

💛 - Coveralls