have a dedicated css for ppolicy feature (#36)

src/ppolicy/css/ppolicy.css

@@ -0,0 +1,33 @@
+/* password entropy customization*/
+#entropybar>div {
+  width: 0%;
+  /* Adjust with JavaScript */
+}
+
+#entropybar>div.levelErr {
+  width: 0%;
+}
+
+#entropybar>div.level0 {
+  width: 20%;
+}
+
+#entropybar>div.level1 {
+  width: 40%;
+}
+
+#entropybar>div.level2 {
+  width: 60%;
+}
+
+#entropybar>div.level3 {
+  width: 80%;
+}
+
+#entropybar>div.level4 {
+  width: 100%;
+}
+
+.entropyHidden {
+  display: none;
+}