Drop historical accessions from GLIS dataset

@slgora and @ColinKhoury

for the first batch of crops

I corrected the function Extract_results_GLIS_API.R to also get the information if an accession is historical or not . therefore update your repository with my current version of Extract_results_GLIS_API.R

I also added a line (copied below) to script 1 to drop all the accessions that are historical records, see in my repo where you need it to insert it and add it to your repo.

# drop all historical records from GLIS data 
all_glis_data <- all_glis_data[!(all_glis_data$HISTORICAL == "y"), ]

after all of this is done you need to rerun the all script and update all the figures related to GLIS_data:

Table 2 : Number of accessions included in MLS (from Plant Treaty GLIS) Table 4: Number of accessions with DOI, Number of accessions included in the Multilateral System (MLS) (Plant Treaty GLIS 2025)

Finally, in the methods document add a sentence explaining that from the GLIS data we dropped all the historical records.