add more transition types

On the heels of #1849 being closed (via https://github.com/plotly/plotly.js/pull/3217), here's a list of new transition types/tweens that we'll want to add, probably piece by piece, trace by trace:

• mark position tweening for all scatter types, and for bars (i.e. ranked bars that change rank)
  • bar position tweens done in #4180 and #4186
• size tweening for everything that has a size: marker size for all scatter traces, height of bar/barpolar, box and violin parameters, text elements
  • bar height tweens done in #4180
• color tweening for everything that has a color: bars, choropleths, boxes, whatever
  • bar color tweens done in #4180
• range tweening for everything that has a range

• bar text color and font-size tweening https://github.com/plotly/plotly.js/pull/4186#issuecomment-533699952

Inizia esaminando il lavoro di transizione referenziato in #1849, #4180 e #4186, incluso il commento rimanente sul colore del testo e sulla dimensione del carattere della barra. Usa la checklist di questa issue per determinare quali aree di tweening di posizione, dimensione, colore e intervallo rimangono; completato significa che i tipi di trace elencati applicabili supportano tali transizioni.