Polars read time serie activity

[armgilles]

Closed #141

• Adapt some code with lazyFrame.
• No every code is in polars, some stay in pandas.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 16.66667% with 10 lines in your changes missing coverage. Please review.

Project coverage is 68.45%. Comparing base (d24fba4) to head (b28d055). Report is 1 commits behind head on dev_polars.

Files with missing lines	Patch %	Lines
src/vcub_keeper/reader/reader.py	14.28%	6 Missing :warning:
src/vcub_keeper/create/creator.py	25.00%	3 Missing :warning:
src/vcub_keeper/ml/cluster.py	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev_polars #142 +/- ## ============================================== + Coverage 68.33% 68.45% +0.11% ============================================== Files 10 10 Lines 319 317 -2 ============================================== - Hits 218 217 -1 + Misses 101 100 -1 ```

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[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #142 will improve performances by 27.69%

_{Comparing polars_read_time_serie_activity (b28d055) with dev_polars (d24fba4)}

Summary

⚡ 1 improvements ✅ 10 untouched benchmarks

Benchmarks breakdown

	Benchmark	dev_polars	polars_read_time_serie_activity	Change
⚡	test_benchmark_get_consecutive_no_transactions_out	2.5 ms	2 ms	+27.69%