add eastAsia test

add eastAsia test

tests/richtext_eastAsia.py

@@ -0,0 +1,13 @@
+from docxtpl import DocxTemplate, RichText
+tpl=DocxTemplate('test_files/richtext_eastAsia_tpl.docx')
+rt = RichText('测试TEST', font = 'Microsoft YaHei')
+ch = RichText('测试TEST', font = '微软雅黑')
+sun = RichText('测试TEST', font = 'SimSun')
+context = {
+    'example' : rt,
+    'Chinese' : ch,
+    'simsun' : sun,
+}
+
+tpl.render(context)
+tpl.save('test_files/richtext_eastAsia.docx')