Allow flexible Lua library selection

[javiermtorres]

Allows flags in the encoderfile config to selectively enable Lua libraries. If no library section is present, the math, string and table packages are loaded.

Closes #120

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.20384% with 20 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
encoderfile/src/transforms/engine/mod.rs	94.11%	12 Missing ⚠️
encoderfile/src/runtime/state.rs	42.85%	4 Missing ⚠️
encoderfile/src/common/config.rs	87.50%	2 Missing ⚠️
encoderfile/src/build_cli/config.rs	83.33%	1 Missing ⚠️
...derfile/src/build_cli/transforms/validation/mod.rs	90.90%	1 Missing ⚠️

Files with missing lines	Coverage Δ
encoderfile/src/build_cli/tokenizer.rs	91.56% <100.00%> (+0.10%)	⬆️
...e/src/build_cli/transforms/validation/embedding.rs	88.60% <100.00%> (+1.10%)	⬆️
...ld_cli/transforms/validation/sentence_embedding.rs	88.75% <100.00%> (+0.59%)	⬆️
...i/transforms/validation/sequence_classification.rs	89.74% <100.00%> (+0.55%)	⬆️
..._cli/transforms/validation/token_classification.rs	89.74% <100.00%> (+0.55%)	⬆️
encoderfile/src/dev_utils/mod.rs	97.95% <100.00%> (+0.04%)	⬆️
encoderfile/src/runtime/loader.rs	64.00% <100.00%> (+3.70%)	⬆️
encoderfile/src/services/embedding.rs	100.00% <100.00%> (ø)
encoderfile/src/services/sentence_embedding.rs	93.75% <100.00%> (+0.41%)	⬆️
...ncoderfile/src/services/sequence_classification.rs	94.11% <100.00%> (+0.36%)	⬆️
... and 10 more

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