shielded v0.2.0

shielded

try to solve https://github.com/olivierlacan/shields/issues/15?source=c

Usage: shielded --label=[string] --value=[string] --file=[filepath] --color=[green/yellowgreen/yellow/red/lightgray/] --scale=[num]

Options:
  --label  [required]
  --value  [required]
  --file   [required]
  --color  [default: "green"]
  --scale  [default: 1]