Remade the test script to add easily new models

dataSources/PubMed/getPubmedData.py

...eroShotClassifier/HuggingFace/zero_shot_classification.py

testModel/metrics.py

testModel/old/multi_label_test.py

testModel/old/smallTextTest.py

testModel/old/test_articles_len.py

testModel/old/test_cohere.py

testModel/old/test_gemini.py

testModel/old/test_model.py

testModel/results/facebook-bart_large_mnli.json

testModel/results_old/cohere/v1.txt

testModel/results_old/gemini/v1.txt

testModel/results_old/gemini/v2.txt

...s_old/v1/MoritzLaurer-DeBERTa_v3_base_mnli_fever_anli.txt

...odel/results_old/v1/MoritzLaurer-bge_m3_zeroshot_v2_0.txt

.../v1/MoritzLaurer-deberta_v3_base_zeroshot_v1_1_all_33.txt

...ld/v1/MoritzLaurer-multilingual_MiniLMv2_L6_mnli_xnli.txt

testModel/results_old/v1/facebook-bart_large_mnli.txt

.../microsoft-BiomedNLP_BiomedBERT_base_uncased_abstract.txt

...s_old/v2/MoritzLaurer-DeBERTa_v3_base_mnli_fever_anli.txt