New NEC and NER results after FIGER dataset fix

src/experiments/NEC_evaluation/evaluation.py

...aluation/results/20250330_111250_GLiNER_CoNLL_metrics.csv

...aluation/results/20250330_111250_GLiNER_CoNLL_results.txt

...n/results/20250330_111310_GLiNER_FIGER-coarse_metrics.csv

...n/results/20250330_111310_GLiNER_FIGER-coarse_results.txt

...ion/results/20250330_111327_GLiNER_FIGER-fine_metrics.csv

...ion/results/20250330_111327_GLiNER_FIGER-fine_results.txt

...on/results/20250330_111351_Llama-3.1-8B_CoNLL_metrics.csv

...on/results/20250330_111351_Llama-3.1-8B_CoNLL_results.txt

...lts/20250330_111720_Llama-3.1-8B_FIGER-coarse_metrics.csv

...lts/20250330_111720_Llama-3.1-8B_FIGER-coarse_results.txt

...sults/20250330_111920_Llama-3.1-8B_FIGER-fine_metrics.csv

...sults/20250330_111920_Llama-3.1-8B_FIGER-fine_results.txt

...aluation/results/20250330_112102_T5-NLI_CoNLL_metrics.csv

...aluation/results/20250330_112102_T5-NLI_CoNLL_results.txt

...n/results/20250330_112150_T5-NLI_FIGER-coarse_metrics.csv

...n/results/20250330_112150_T5-NLI_FIGER-coarse_results.txt

...ion/results/20250330_112237_T5-NLI_FIGER-fine_metrics.csv

...ion/results/20250330_112237_T5-NLI_FIGER-fine_results.txt

...on/results/20250330_114119_T5-MLM-label_CoNLL_metrics.csv