Write microbatch compiled + run code to separate target files

[MichelleArk]

Resolves #10714

Problem

During execution of microbatch models, each batch is re-compiled with batch-level time filters. Currently, this results in the compiled/run .sql files becoming clobbered on each write when there should be one file per compiled/run batch.

Solution

Pass an additional argument, split_suffix (naming suggestions welcome!) that splits the write path by the suffix and writes to a top-level directory without the suffix.

Checklist

• I have read the contributing guide and understand what's expected of me.
• I have run this code in development, and it appears to resolve the stated issue.
• This PR includes tests, or tests are not required or relevant for this PR.
• This PR has no interface changes (e.g., macros, CLI, logs, JSON artifacts, config files, adapter interface, etc.) or this PR has already received feedback and approval from Product or DX.
• This PR includes type annotations for new and modified functions.

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