Missing instructions accumulate

[UlisesLuzius]

In BitPatters.scala, we should add the following instructions and ensure their execution.

Execute.scala has the module that enables to process them as DataProc3S.

  // 31 | 30 29 | 28 27 26 25 24 | 23 22 21 | 20 19 18 17 16 | 15 | 14 13 12 11 10 | 09 08 07 06 05 | 04 03 02 01 00 | Instruction Page | Variant
  // sf |  op54 |  1  1  0  1  1 |   op31   |       Rm       | o0 |       Ra       |       Rn       |       Rd       |                  |
  //  0 |  0  0 |  1  1  0  1  1 |  0  0  0 |       Rm       |  0 |       Ra       |       Rn       |       Rd       | MADD             | 32-bit
  //  0 |  0  0 |  1  1  0  1  1 |  0  0  0 |       Rm       |  1 |       Ra       |       Rn       |       Rd       | MSUB             | 32-bit
  //  1 |  0  0 |  1  1  0  1  1 |  0  0  0 |       Rm       |  0 |       Ra       |       Rn       |       Rd       | MADD             | 64-bit
  //  1 |  0  0 |  1  1  0  1  1 |  0  0  0 |       Rm       |  1 |       Ra       |       Rn       |       Rd       | MSUB             | 64-bit
  def DP3S = BitPat("b?0011011000?????????????????????")
  def DP3S_MADD32 = BitPat("b00011011000?????0???????????????")
  def DP3S_MSUB32 = BitPat("b00011011000?????1???????????????")
  def DP3S_MADD   = BitPat("b10011011000?????0???????????????")
  def DP3S_MSUB   = BitPat("b10011011000?????1???????????????")