makeMultiplePlots: Make a list of plotEQTL plots.
In kauralasoo/seqUtils:

Plots are faceted by condition_name column in sample_metadata.

1 2	makeMultiplePlots(snps_df, expression_matrix, genotype_matrix, sample_metadata, gene_metadata)

`snps_df`	Data frame with at least two columns (gene_id, snp_id) corresponding to snps and genes to be plotted.
`expression_matrix`	Matrix of normalised gene expression values (genes in rows, samples in columns). Column names correspond to sample_id in sample_metadata.
`genotype_matrix`	Matrix of genotypes (variants in rows, individuals in columns). Column names correspond to genotype_id in sample_metadata.
`sample_metadata`	data frame linking samples to genotypes (Required columns: sample_id, genotype_id, condition_name)
`gene_metadata`	data frame for linking gene ids to gene names. (Required columns: gene_id, gene_name)