[2.2.0] [WIP] Add functionality (#206)

* TenantDatabaseDoesNotExistException

* Apply fixes from StyleCI

* User post-creation callbacks

* Rename method

* postCreationActions

* pass $tenant as parameter

* pass $tenant to async actions

* WIP findBy()

* findBy\* ForwardsCalls

* Apply fixes from StyleCI

* findBy DB storage driver

* Redis  SD TODO message

* Apply fixes from StyleCI

* Fix chained jobs

* WIP event system

* import str

* instanceof closure check

* findBy instead of find

* Tenant -> Tenants

* dots

* Use DB hooks instead of a SC key

* Don't allow  callables for queue chain

* CanDeleteKeys interface

* Apply fixes from StyleCI

* CanFindByAnyKey interface

* Apply fixes from StyleCI

* Ditch models for custom repositories

* Resolve circular dependency

* Apply fixes from StyleCI

* Fix tests

* Apply fixes from StyleCI

* FutureTest

* Prefix tenant events with 'tenant.'

* Event listener arguments test

src/Contracts/Future/CanDeleteKeys.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\Contracts\Future;
+
+use Stancl\Tenancy\Tenant;
+
+/**
+ * This interface will be part of the StorageDriver interface in 3.x.
+ */
+interface CanDeleteKeys
+{
+    /**
+     * Delete keys from the storage.
+     *
+     * @param string[] $keys
+     * @return void
+     */
+    public function deleteMany(array $keys, Tenant $tenant = null): void;
+}

src/Contracts/Future/CanFindByAnyKey.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\Contracts\Future;
+
+use Stancl\Tenancy\Exceptions\TenantDoesNotExistException;
+use Stancl\Tenancy\Tenant;
+
+/**
+ * This interface *might* be part of the StorageDriver interface in 3.x.
+ */
+interface CanFindByAnyKey
+{
+    /**
+     * Find a tenant using an arbitrary key.
+     *
+     * @param string $key
+     * @param mixed $value
+     * @return Tenant
+     * @throws TenantDoesNotExistException
+     */
+    public function findBy(string $key, $value): Tenant;
+}