New features - layout array and automatic widgets

Layout support as an array

• image array
• widget array

 widgetParams=[
        ['range', ['A']],
        ['range', ['B',0,1,0.1,0,1]],
        ['range', ['C'], {'type':'minmax'}],
        ['range', ['D'], {'type':'sigma', 'bins':10, 'sigma':3}],
        ['range', ['E'], {'type':'sigmaMed', 'bins':10, 'sigma':3}],
        ['slider', ['AA'],{'bins':10}],
        ['multiSelect',["DD"]],
        ['select',["CC",0,1,2,3]],
        #['slider','F', ['@min()','@max()','@med','@min()','@median()+3*#tlm()']], # to be implmneted
    ]
    widgetLayoutDesc=[ [0,1,2], [3,4,5], [6,7], {'sizing_mode':'scale_width'} ]
    
    figureLayoutDesc=[
        [0,1,2, {'commonX':1,'y_visible':2,'plot_height':300}],
        [3,{'plot_height':100}],
        {'plot_height':100,'sizing_mode':'scale_width'}
    ]

Fixing metadata warnings

TTree searching

• PWGPP-485 - findSelectedBranches works for anytree and TTree

Widget support

• layout can be specified as an list of list
• adding automatic adjustment of the ranges of widgets
  • min-max
  • n sigma
  • unique

Table support

• Options to filter columns
  • include
  • exclude

NDregression

• adding demo notebooks for n dimensional regression