Rearrangement API

[t-sin]

• remove detecting-buffer-size (#19)
• let detect-encoding and detect-end-of-line be method
  • those can treat vector, stream and pathname same as detect-external-format
• can supply buffer size as &optional to detect-encoding and detect-end-of-line
  • do to detect- things
  • if you wanna check whole file, supply :full

[t-sin]

https://github.com/t-sin/inquisitor/issues/44 makes change the inquisitor API.

• *detecting-buffer-size* removed
• detect-encoding and detect-end-of-line are methods now