Change signature of cirq_ft.And gate to use directional registers like Qualtran

[tanujkhattar]

After #6300, Cirq-FT registers can now be directional (LEFT / RIGHT). This PR changes the signature of And gate to use directional registers s.t. it matches the signature of And Bloq in Qualtran. This is the only gate right now that should use directional signatures in Cirq-FT.

cc @fdmalone @mpharrigan

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (8e4e7d1) 97.88% compared to head (0db23c0) 97.89%.
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6302   +/-   ##
=======================================
  Coverage   97.88%   97.89%           
=======================================
  Files        1104     1104           
  Lines       95863    95878   +15     
=======================================
+ Hits        93840    93856   +16     
+ Misses       2023     2022    -1     

Files	Coverage Δ
cirq-ft/cirq_ft/__init__.py	100.00% <ø> (ø)
cirq-ft/cirq_ft/algos/and_gate.py	100.00% <100.00%> (ø)
cirq-ft/cirq_ft/algos/and_gate_test.py	100.00% <100.00%> (ø)
cirq-ft/cirq_ft/algos/apply_gate_to_lth_target.py	100.00% <100.00%> (ø)
...-ft/cirq_ft/algos/apply_gate_to_lth_target_test.py	100.00% <100.00%> (ø)
cirq-ft/cirq_ft/algos/arithmetic_gates.py	99.08% <100.00%> (ø)
cirq-ft/cirq_ft/algos/generic_select_test.py	100.00% <100.00%> (ø)
cirq-ft/cirq_ft/algos/hubbard_model.py	98.21% <100.00%> (ø)
cirq-ft/cirq_ft/algos/hubbard_model_test.py	100.00% <100.00%> (ø)
...q_ft/algos/mean_estimation/complex_phase_oracle.py	100.00% <100.00%> (ø)
... and 32 more

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[mpharrigan]

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