The Patriots announced earlier this afternoon that they have signed three of their draft picks and nine undrafted free agents.  The Patriots signed sixth-round draft picks CB Marcellas Dial, QB Joe Milton III and seventh-round draft pick TE Jaheim Bell.  In addition to signing Dial, Milton and Bell, the Patriots also signed the following rookie free agents:  RB DeShaun Fenwick, CB Kaleb Ford-Demont, T Zuri Henry, LB Jontrey Hunter, DE…