Add usersettings template and config values

template/quitesimple/usersettings

@@ -0,0 +1,17 @@
+{qswiki:include:general_header}
+<main id="content">
+<h2>User settings</h2>
+<br>
+<h3>Change your current password</h3>
+<br><br>
+<form action="{qswiki:var:usersettingsurl}" method="POST">
+Current password: <input type="text" name="oldpassword" style="width: 25%;"></input><br>
+New Password: <input type="password" name="newpassword" style="width: 25%;"></input><br>
+Repeat password: <input type="password" name="newpasswordconfirm" style="width: 25%;"></input><br>
+
+<button type="submit" name="do" value="submit">Submit</button>
+<input type="hidden" name="csrf_token" value="{qswiki:var:csrf_token}"></input>
+
+</form>
+</main>
+{qswiki:include:general_footer}