Created two new API requester

+ Created a new Tags API requester to allow us to make tag related API requests
+ Created a new Branches API requester to allow us to make branch related API requests

src/Api/Branches.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Gitea\Api;
+
+use GuzzleHttp\Exception\ServerException;
+
+use Gitea\Client;
+use Gitea\Collections\ApiItemCollection;
+use Gitea\Model\Branch;
+
+use Gitea\Api\Abstracts\AbstractApiRequester;
+
+class Branches extends AbstractApiRequester
+{
+    /**
+     * Get all tags from a particular repository
+     * using the repository's name and owner
+     *
+     * Example:
+     * ```
+     * // Get all tags from a repository owned by a user
+     * $giteaClient->tags()->fromRepository("username", "test-repository");
+     *
+     * // Get all tags from a repository owned by an organization
+     * $giteaClient->tags()->fromRepository("organizationName", "test-repository");
+     * ```
+     *
+     * @param string $owner The name of the user or organization that owns the repository
+     * @param string $repository The name of the repository
+     * @author Benjamin Blake (sitelease.ca)
+     *
+     * @return ApiItemCollection
+     */
+    public function fromRepository(string $owner, string $repository)
+    {
+        $client = $this->getClient();
+
+        $repositoryCollection = new ApiItemCollection();
+        try {
+            $response = $this->get("repos/$owner/$repository/branches");
+            $statusCode = $response->getStatusCode();
+            $body = $response->getBody();
+            if ($statusCode == 200) {
+                $jsonItemList = json_decode($body, true);
+                if (count($jsonItemList) > 0) {
+                    foreach ($jsonItemList as $jsonItem) {
+                        $encodedItem = json_encode($jsonItem);
+                        $itemObject = Branch::fromJson(
+                            $this->getClient(),
+                            $this,
+                            json_decode($encodedItem)
+                        );
+                        $repositoryCollection->addItem($itemObject, $itemObject->getName());
+                    }
+                }
+            }
+            return $repositoryCollection;
+        } catch (ServerException $serverError) {
+            return $repositoryCollection;
+        }
+    }
+
+}

src/Api/Tags.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Gitea\Api;
+
+use GuzzleHttp\Exception\ServerException;
+
+use Gitea\Client;
+use Gitea\Collections\ApiItemCollection;
+use Gitea\Model\Tag;
+
+use Gitea\Api\Abstracts\AbstractApiRequester;
+
+class Tags extends AbstractApiRequester
+{
+    /**
+     * Get all tags from a particular repository
+     * using the repository's name and owner
+     *
+     * Example:
+     * ```
+     * // Get all tags from a repository owned by a user
+     * $giteaClient->tags()->fromRepository("username", "test-repository");
+     *
+     * // Get all tags from a repository owned by an organization
+     * $giteaClient->tags()->fromRepository("organizationName", "test-repository");
+     * ```
+     *
+     * @param string $owner The name of the user or organization that owns the repository
+     * @param string $repository The name of the repository
+     * @author Benjamin Blake (sitelease.ca)
+     *
+     * @return ApiItemCollection
+     */
+    public function fromRepository(string $owner, string $repository)
+    {
+        $client = $this->getClient();
+
+        $repositoryCollection = new ApiItemCollection();
+        try {
+            $response = $this->get("repos/$owner/$repository/tags");
+            $statusCode = $response->getStatusCode();
+            $body = $response->getBody();
+            if ($statusCode == 200) {
+                $jsonItemList = json_decode($body, true);
+                if (count($jsonItemList) > 0) {
+                    foreach ($jsonItemList as $jsonItem) {
+                        $encodedItem = json_encode($jsonItem);
+                        $itemObject = Tag::fromJson(
+                            $this->getClient(),
+                            $this,
+                            json_decode($encodedItem)
+                        );
+                        $repositoryCollection->addItem($itemObject, $itemObject->getId());
+                    }
+                }
+            }
+            return $repositoryCollection;
+        } catch (ServerException $serverError) {
+            return $repositoryCollection;
+        }
+    }
+
+}