I have written an option for Excepthook integrations.

[Curation Repo](https://github.com/getsentry/sentry-python)
[PR link](https://github.com/getsentry/sentry-python/pull/364)

The Sentry error capture and monitor library has recently changed its official library. I wanted to update the old library. I found a lack of testing.

- What feature(s) did you add?


## Always_run 
Sentry does not catch errors in repl. They have a filter for that. If you when error with the code from an active terminal or debug screen; does not catch errors. Sometimes I need this feature.

I've made this query dependent on the user's request.


##### Example Code

```python
$ python
> from sentry_sdk import init
> from sentry_sdk.integrations.excepthook import ExcepthookIntegration
>
> init("http://foobar@localhost/123",
>        integrations=[ExcepthookIntegration(always_run=True)]
> )
```
its simple. :)


- How did you implement it/them?

ExcepthookIntegration class was not getting an initial value. I added the initial value and set the default value to False. I changed the query that controls repl activity, and I've canceled it if always_run is set.

[This code](https://github.com/getsentry/sentry-python/commit/7f259280c86033b4ac4ea4178422750836673139#diff-b5bd15037527fcce59645aec1a9ebd21)

I also had to write one test to support the repo. It was fun. :) 

[This test](https://github.com/getsentry/sentry-python/commit/7f259280c86033b4ac4ea4178422750836673139#diff-7d6e831027459c4607d17109b32715dc)


I also opened a pr in the document. Not officially approved, but accepted. The next merger is said to be taken.
[Doc-PR](https://github.com/getsentry/sentry-docs/pull/978)


GitHub Account
[tolgahanuzun](https://github.com/tolgahanuzun)