details() consistency update for SNS and SES services

[caronc]

Description:

Related issue (if applicable): #918

Added more consistency to Apprise.details() output.

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@918-consistent-details

# launch python instance
python

Now from inside of the python cli type:

from apprise import Apprise

apobj = Apprise()

# Test the details output:
apobj.details()

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (768b384) 99.98% compared to head (f686025) 99.98%.
Report is 1 commits behind head on master.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #919   +/-   ##
=======================================
  Coverage   99.98%   99.98%           
=======================================
  Files         122      122           
  Lines       16200    16200           
  Branches     3303     3303           
=======================================
  Hits        16198    16198           
  Misses          1        1           
  Partials        1        1           

Files Changed	Coverage Δ
apprise/plugins/NotifySES.py	100.00% <ø> (ø)
apprise/plugins/NotifySNS.py	100.00% <ø> (ø)

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