readme: add initial version

model: add French Europeana ELECTRA model (TensorFlow weights)

config: add configuration for French Europeana ELECTRA model

vocab: add French Europeana ELECTRA model vocab file (generated with Tokenizers library)

tokenizer: add configuration for French Europeana ELECTRA model (no lowercasing, avoid accent stripping)

model: add French Europeana ELECTRA model

config: add configuration for French Europeana ELECTRA model

initial commit