Allow for chain break configuration

[brunotvs]

Example behavior:

chain_break_at = "Always"

Before formating:

local x = object:method(argument)
local y = object:method(argument):method(argument)

After formating:

local x = object:method(argument)
local y = object:
  :method(argument)
  :method(argument)

There could be multiple options:

1. "Always" - Always breaks chained expressions
2. N - Breaks when there are at least 'N' chained expressions ("Always" and 1 are equivalent, N should be always greater than 0?)
3. "Auto" - Based on column_width, current behavior