see_chrom_vis.c

Here we'll create a text file that, when run in glowscript.org, shows the visualization.

First, connect to the database, and ask it for the rows with the best similarity scores.
Each row has a pair of (chromosome, region) coordinates, where we'll draw a connecting line.

We'll also look up the number of regions in each chromosome and pass this to the script.

Why provide chromosome lengths?
    1) to convey the number of chromosomes to draw
    2) to draw the chromosomes as cylinders with relative lengths
    3) without the chromosome lengths, we wouldn't know that region 45 is 
    about halfway through a chromosome that has 95 regions, so we wouldn't be able to
    draw connection on the right location.

We generate the script and write it to "out.glowscript", and tell the user how to run it.