[Optimizer] [CircuitSeq] Cherry-pick #168 #169 #170 to the master branch

[xumingkuan]

Features:

• Support context shift with multiple rules with the same source gate type, e.g., "rz q0 0.25pi = t q0", "rz q0 -0.25pi = tdg q0"
• Support constant parameters in create_single_gate_GraphXfer
• Add a test to test_context_shift
• Add a linear function to translate RZ gates into T gates
• Add a linear function to translate CCZ gates into CX and RZ gates
• Add Clifford_T_5_3_complete_ECC_set.json to the ECC sets folder