make: replace Makefile with make.vsh

make.vsh

@@ -0,0 +1,25 @@
+#!/usr/bin/env -S v run
+
+import build
+import net.http
+
+const source_url = 'https://spdx.org/licenses/licenses.json'
+
+mut context := build.context(default: 'licenses.min.json')
+
+context.artifact(
+	name:       'licenses.json'
+	help:       'SPDX licenses list in JSON format'
+	should_run: |self| true
+	run:        |self| http.download_file(source_url, self.name)!
+)
+
+context.artifact(
+	name:       'licenses.min.json'
+	help:       'The minified licenses.json ready for embedding (requires jq util)'
+	depends:    ['licenses.json']
+	should_run: |self| true
+	run:        |self| system('jq -c . < licenses.json > ${self.name}')
+)
+
+context.run()