add sms provider seven

[matthiez]

Description:

This PR adds seven as a SMS provider.

New Service Completion Status

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

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• No lint errors (use flake8)
• 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/seven-io/apprise.git@master

# Test out the changes with the following command:
apprise -t "Test Title" -b "Test Message" \
  "seven://apikey/target-phone-no"

Thanks for looking into it and please be easy on me, this is my first PR for this project :-)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.37%. Comparing base (f37dfbf) to head (6c4d00a).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1242   +/-   ##
=======================================
  Coverage   99.36%   99.37%           
=======================================
  Files         147      148    +1     
  Lines       20555    20636   +81     
  Branches     3663     3672    +9     
=======================================
+ Hits        20425    20506   +81     
  Misses        121      121           
  Partials        9        9           

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[caronc]

This is a really great PR; thank you! just a few small tests should get you the rest of the coverage you need and we can merge this right away. Great work! 👍

[caronc]

Add the following and you'll be at 100% test coverage:

    ('seven://{}/?to=15551232000'.format('a' * 25), {
        # target phone number using to=
        'instance': NotifySeven,

        # Our expected url(privacy=True) startswith() response:
        'privacy_url': 'seven://a...a/15551232000',
    }),
    ('seven://{}/15551'.format('a' * 25), {
        # target phone number invalid
        'instance': NotifySeven,
        # Our call to notify() under the hood will fail
        'notify_response': False,
    }),

[matthiez]

Hi, thanks for your help! I just pushed the changes.

[caronc]

Just to confirm that it is working for you (before i merge). Also, i prepared the following Wiki page for your review: here

[matthiez]

Just to confirm that it is working for you (before i merge). Also, i prepared the following Wiki page for your review: here

SMS dispatch is all working, tests are passing, and the wiki LGTM.
Thanks for your help @caronc!