Add posibility to allure_robotframework listener to send "broken" test status to allure

#### I'm submitting a ...
- [ ] feature request

#### What is the current behavior?
Currently allure_robotframework listener can send just four statuses to Allure - PASSED, FAILED, SKIPPED, UNKOWN (only in failure case), those are hardcoded in `get_allure_status` function.

#### What is the expected behavior?
Add possibility to send other test statuses, for example, BROKEN that actually in the default allure statuses list.

#### What is the motivation / use case for changing the behavior?
In my case we need to divide failed cases by different statuses on allure(failed for usual failures and broken for known cases with opened issues)

#### Please tell us about your environment:

allure-python-commons 2.13.2
allure-robotframework 2.13.2

从 allure_robotframework listener 的 get_allure_status 函数开始，该函数当前的 PASSED、FAILED、SKIPPED 和 UNKNOWN 映射被描述为硬编码。跟踪其返回的状态如何到达 Allure，然后验证已知情况下的失败可以产生 BROKEN，同时现有状态保持不变。

由索引模型根据 Issue 内容生成。