added parameter 'fixedWidth'

[mikedatsko]

• added fixedWidth parameter to console.log
• added fixedWidth changed initialization:

  import { Log, Level } from 'ng2-logger/ng2-logger'
  const log = Log.create('AppCmp')
  log.color = 'orange'
  log.fixedWidth = 30 // width of the label (amount of chars, spaces)