feat: add echo prompt option

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 96.15385% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 95.25%. Comparing base (cb065e1) to head (7d89158).

Files	Patch %	Lines
rsql_core/src/configuration.rs	59.09%	9 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #141 +/- ## ========================================== - Coverage 95.28% 95.25% -0.03% ========================================== Files 91 91 Lines 10793 10878 +85 ========================================== + Hits 10284 10362 +78 - Misses 509 516 +7 ```

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Bencher

Report	Sun, May 19, 2024 at 03:24:51 UTC
Project	theseus-rs/rsql
Branch	add-echo-prompt-option
Testbed	localhost

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Benchmark	Latency	Latency Results nanoseconds (ns)
duckdb	➖ (view plot)	4,227,800.00
postgres-embedded	➖ (view plot)	815,390,000.00
postgresql-embedded	➖ (view plot)	811,730,000.00
rusqlite	➖ (view plot)	299,500.00
sqlite	➖ (view plot)	536,420.00

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