Generate additional image credits

pkg/credits/credits.txt

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+Open Blades of Exile
+
+Maintenance:
+
+- NQNStudios
+
+Not confirmed:
+- CelticMinstrel
+- sylae
+- Menshin
+- fosnola
+- evan-erdos
+- daerogami
+- akien-mga
+- MaddTheSane
+- ultraboe
+- murlock
+- absquatulate
+- catphive
+- redsaurus
+- retropipes
+- seisatsu
+- x-qq
+
+Art:
+
+- ???

pkg/generate-credits.sh

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+#!/bin/bash
+# Call this manually every time DONORS.md or pkg/credits/credits.txt 
+# changes, and commit the generated files.
+
+# Requires:
+# - ImageMagick
+# - Rollout font
+
+# Usage: generate-credits.sh

pkg/get-credits.sh

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+#!/bin/bash
+
+names=$(grep ^\* DONORS.md)
+name_count=$(echo "$names" | wc -l)
+
+# For clear text, render higher point size at higher density
+font_size=8
+spacing=0
+actual_line_size=$((font_size + spacing + 7))
+first_line_offset=$((font_size + 2))
+height=$((actual_line_size * name_count))
+
+# https://www.dafont.com/pix-chicago.font
+
+# TODO calculate line height
+magick convert -size 280x$height xc:transparent \
+    -stroke black -pointsize $font_size -interline-spacing $spacing \
+    -kerning 1 -font pix-Chicago -annotate +0+$first_line_offset "$names" \
+    startanim2.png