add: get project all files

app/services/gitea/repository/files/get_service.rb

@@ -0,0 +1,25 @@
+class Gitea::Repository::Files::GetService < Gitea::ClientService 
+  attr_reader :owner, :repo_name, :ref, :q, :token
+
+  def initialize(owner, repo_name, ref, q=nil, token=nil)
+    @owner = owner 
+    @repo_name = repo_name 
+    @ref = ref 
+    @q = q 
+    @token = token
+  end
+
+  def call 
+    response = get(url, params)
+    render_status(response)
+  end
+
+  private 
+  def params
+    Hash.new.merge(token: token, ref: ref, q: q)
+  end
+
+  def url 
+    "/repos/#{owner.login}/#{repo_name}/find"
+  end
+end