Logical Theme System: Add event to register web routes

[ssddanbrown]

To allow easy registration of extra routes that require session and middlware.
Potentially have an option for registering auth routes? Maybe extra event or a passed parameter?

[ssddanbrown]

Added via 22a9cf1

[ssddanbrown]

Usage Example

<?php

use BookStack\Theming\ThemeEvents;
use BookStack\Facades\Theme;
use Illuminate\Routing\Router;

Theme::listen(ThemeEvents::ROUTES_REGISTER_WEB, function (Router $router) {

    $router->get('/counter', function () {
        $count = session()->get('counter', 0) + 1;
        session()->put('counter', $count);
        return "Count: {$count}";
    });
});

Theme::listen(ThemeEvents::ROUTES_REGISTER_WEB_AUTH, function (Router $router) {

    $router->get('/counter-auth', function () {
        $count = session()->get('secret-counter', 0) + 1;
        session()->put('secret-counter', $count);
        return "Count Authed: {$count}";
    });
});