(GH#129) Adds -Online help to all public cmdlets

[steviecoaster]

Fixes #129

[codecov]

Codecov Report

Merging #130 into main will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #130   +/-   ##
=======================================
  Coverage   59.29%   59.29%           
=======================================
  Files           1        1           
  Lines         457      457           
  Branches        3        3           
=======================================
  Hits          271      271           
  Misses        183      183           
  Partials        3        3           

Impacted Files	Coverage Δ
BurntToast/BurntToast.psm1	59.29% <0.00%> (ø)

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