created plugin to Telegram using @bullhorn_bot

[mayronceccon]

Contribution Type: new plugin

This pull request affects the following areas:

• [ ] Front-End
• [ ] Builder
• [X] Build Plugins

In raising this pull request, I confirm the following (please check boxes):

• [X] I have read and understood the contributing guidelines?
• [X] I have checked that another pull request for this purpose does not exist.
• [X] I have considered, and confirmed that this submission will be valuable to others.
• [ ] I have created or updated the relevant documentation for this change on the PHPCI Wiki.
• [ ] Do the PHPCI tests pass?

Detailed description of change:

Plugin to send message to Telegram.

It's necessary follow user @bullhorn_bot in Telegram.

After is necessary write /start that will create a unique URL that should be inserted into the destinatary_horn.

After, insert URL in field destinatary_horn.

Example use:

complete:
    telegram_horn:
        destinatary_horn: 
            - https://integram.org/XXXXXX

Passing Build

Failing Build

[corpsee]

By the way PHPCI Telegram Plugin already exists.