all: rename module to pwdb

pwdb_test.v

@@ -0,0 +1,17 @@
+// vtest build: !windows
+import pwdb
+
+fn test_get_by_uid() {
+	pw := pwdb.get_by_uid(0)!
+	assert pw.name == 'root'
+}
+
+fn test_get_by_name() {
+	pw := pwdb.get_by_name('root')!
+	assert pw.uid == 0
+}
+
+fn test_get_all() {
+	pws := pwdb.get_all()
+	assert pws.len > 0
+}