add svg stamp support

svg/Makefile

@@ -0,0 +1,22 @@
+TARGETS=$(shell python3 get_targets.py main.json)
+
+GENERATED_FILES = 	$(wildcard *.deps) \
+					$(wildcard *.stl) \
+					$(wildcard *.png) \
+					$(wildcard *.generated.scad)
+
+.phony: all clean
+
+all: ${TARGETS}
+
+include $(wildcard *.deps)
+
+%.stl: main.scad main.json Makefile
+		flatpak run org.openscad.OpenSCAD --enable textmetrics -p main.json -P $(basename $@) -DFN=64 -D "MODELVER=\"$(shell git rev-parse --short=6 HEAD)\"" -m make -o $@ -d $@.deps $<
+
+%.png: main.scad main.json Makefile
+	flatpak run org.openscad.OpenSCAD --enable textmetrics -p main.json -P $(basename $@) -DFN=32 --render --imgsize 1600,1200 -o $@ main.scad
+
+clean:
+	rm -rf ${GENERATED_FILES}
+