Feature/layout to app in docs

[DarkSide666]

fixes #247

[codecov]

Codecov Report

Merging #248 into develop will increase coverage by 0.11%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop     #248      +/-   ##
=============================================
+ Coverage      73.46%   73.57%   +0.11%     
  Complexity      1067     1067              
=============================================
  Files             59       59              
  Lines           2570     2570              
=============================================
+ Hits            1888     1891       +3     
+ Misses           682      679       -3

Impacted Files	Coverage Δ	Complexity Δ
src/TableColumn/Status.php	84.37% <0%> (+9.37%)	10% <0%> (ø)	⬇️

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[DarkSide666]

there will be some conflicts with #246 to solve

[romaninsh]

mass replace? :D i wonder just if there are any examples that demonstrate $layout features explicitly, e.g. $layout->addMenu, can you double-check before merging.. Manual review will be too complex anyway.

[romaninsh]

OK to merge, i'll fix the #246 if needed.

[DarkSide666]

It was not mass replace, but close to that. I manually checked each replace. Of course there is small possibility that i made mistake somewhere, but i also checked demo scripts and they worked fine.
If i remember correctly there was few places which demonstrate specific usage of layout (like addMenu etc.) and these are not changed.