Feature: view_timelines - Title-fontsize and Title-X-Pos adjustment

[Magnus167]

Added a feature to adjust the font-size and the x-position of the title of a view_timelines plot.
Docstring:

"""
:param <float> title_xadj: parameter that sets x position of title. Default is 0.5.
:param <int> title_fontsize: font size of title. Default is 16.
"""

This also hints that either:
[1] All visual functions must include an x_adj and y_adj;
[2] Or they must support the use of an X-Y tuple as the _adj variable

[codecov]

Codecov Report

Patch coverage: 75.00% and no project coverage change.

Comparison is base (d129d0e) 73.74% compared to head (8038e31) 73.74%.

❗ Current head 8038e31 differs from pull request most recent head 8cd3cec. Consider uploading reports for the commit 8cd3cec to get more accurate results

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #817   +/-   ##
========================================
  Coverage    73.74%   73.74%           
========================================
  Files           31       31           
  Lines         3671     3671           
========================================
  Hits          2707     2707           
  Misses         964      964           

Impacted Files	Coverage Δ
macrosynergy/panel/view_timelines.py	91.07% <75.00%> (ø)

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