obtains the none boosting fraction of growth for given MFG if there is a boosting resource
getNonBoostFrac(microbeNames, resourceNames, numPaths)Vector of strings which contains the names of the microbial groups in the system e.g. c('Bacteroides','Acetogens')
Vector of strings which contains the names of the resources in the system
Named vector. Number of paths for each microbial group
an array with format [group,resource,path]