userland: add archive tools and pinned GoAWK, esbuild, and QuickJS

userland/goawk/source/testdata/gawk/convfmt.awk

@@ -0,0 +1,10 @@
+BEGIN {
+	CONVFMT = "%2.2f"
+	a = 123.456
+	b = a ""                # give `a' string value also
+	printf "a = %s\n", a
+	CONVFMT = "%.6g"
+	printf "a = %s\n", a
+	a += 0                  # make `a' numeric only again
+	printf "a = %s\n", a    # use `a' as string
+}