[PROTOTYPE] Add function for pattern matching using Python functions as the patterns with the unified compiler

[mudit2812]

Issues:

• The following pattern does not work. Need to figure out why

  def pattern3(w1, w2, w3):
      qml.CNOT([w1, w2])
      qml.PauliY(w2)
      qml.X(w3)
  
  def rewrite3(w1, w2, w3):
      qml.PauliX(w1)
      qml.S(w3)
      qml.T(w2)

• Currently only qubit inputs to the patterns are supported
• Variables created inside the search pattern cannot be used inside the rewrite pattern

[sc-104457]