Improved voipms:// phone number parsing

[caronc]

Description:

Related issue (if applicable): #1201

Improved phone number parsing while investigating my own error message I was getting which was incredibly vague:

• 'status: sms_failed', 'message: The SMS message was not sent'

My support ticket got answered with the response:

This type of error usually happens when a DID hasn't been enabled for SMS messages.
You can enable your DID to send and receive SMS Messages by editing your number and select the following:


Enable SMS/MMS ($0.0075/SMS, and $0.02/MMS)

After doing this, I was able to send notifications:

This PR just improves a bit on the phone number parsing (making it slightly less restrictive); otherwise there is no core changes from previous version.

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/caronc/apprise.git@1201-voipms-bullet-proofing

# Test out the changes with the following command:
apprise -t "Test Title" -b "Test Message" \
  "voipms://credentials/source_no/to_no"

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.36%. Comparing base (78f16ad) to head (dbb0841).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1230   +/-   ##
=======================================
  Coverage   99.36%   99.36%           
=======================================
  Files         147      147           
  Lines       20554    20555    +1     
  Branches     3663     3662    -1     
=======================================
+ Hits        20424    20425    +1     
  Misses        121      121           
  Partials        9        9           

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