Updates to example scripts

[jdebacker]

This PR makes the following updates to the example run scripts:

1. Saves all plot and table output a single folder
2. Saves a table with the full time series of several macro aggregates
3. Uses non-age specific tax functions (important given the high variation across age in functions estimated on recent versions of TaxData/Tax-Calculator (see Issue Tax function estimation #96)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.35%. Comparing base (300912a) to head (13841dd).
Report is 6 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #111   +/-   ##
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  Coverage   75.35%   75.35%           
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  Files          11       11           
  Lines         852      852           
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  Hits          642      642           
  Misses        210      210           

Flag	Coverage Δ
unittests	75.35% <ø> (ø)

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