feat: score- and rule-based QC

[ivan-aksamentov]

Resolves: #105 #116

• have a set of independent QC rules
• each rule has a set of configuration parameters (e.g. thresholds, coefficients, etc.)
• each rule outputs a quality score (QC: score-based output #105) as well as optional rule-specific outputs
• each rule has a specific way to be rendered in the tooltips
• each rule has a specific way to be rendered in the table
• each rule has a specific way to be rendered in the export files (using rule-specific outputs)
• adjust filtering
• adjust sorting
• each sequence highlighted with color ranging from pale yellow to bright red, depending on total QC score
• rules can be configured or disabled independently
• treat alignment quality and failures as a QC rule, with it's own score (very high weight)
• normalize score for more precise coloring, filtering and sorting
• use Nextstrain's tree information to make QC rules even more useful

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/neherlab/nextclade/bb1zur29n
✅ Preview: https://nextclade-git-feat-score-based-qc.neherlab.vercel.app