Added Chantify Support

[caronc]

Description:

Related issue (if applicable): n/a

Added Chantify support

• Source: https://chanify.net/
• Icon Support: No
• Message Format: Text
• Message Limit: 32768 Characters per message

Syntax

Valid syntax is as follows:

Cloud Hosting

• chantify://{token}

Parameter Breakdown

Variable	Required	Description
token	Yes	The token you generated as part of your Chantify account

New Service Completion Status

• [x] apprise/plugins/NotifyChantify.py
• [x] KEYWORDS
  • add new service into this file (alphabetically).
• [x] README.md
  • add entry for new service to table (as a quick reference)
• [x] packaging/redhat/python-apprise.spec
  • add new service into the %global common_description

Checklist

• [x] The code change is tested and works locally.
• [x] There is no commented out code in this PR.
• [x] No lint errors (use flake8)
• [x] 100% test coverage

Testing

Anyone can help test this source code as follows:

# Create a virtual environment to work in as follows:
python3 -m venv apprise

# Change into our new directory
cd apprise

# Activate our virtual environment
source bin/activate

# Install the branch
pip install git+https://github.com/caronc/apprise.git@chantify-support

# Test out the changes with the following command:
apprise -t "Test Title" -b "Test Message" \
  chantify://mytoken

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 98.65%. Comparing base (5df6c3a) to head (ebaf1f5).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1098 +/- ## ========================================== - Coverage 99.27% 98.65% -0.62% ========================================== Files 137 136 -1 Lines 17908 17883 -25 Branches 3662 3429 -233 ========================================== - Hits 17778 17643 -135 - Misses 121 225 +104 - Partials 9 15 +6 ```

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