Remove SparseHamiltonian, add sign_mask to SparseOperator

[fevangelista]

This pull request removes the SparseHamiltonian class and its related functionality from the codebase. It also introduces a new function sparse_operator_hamiltonian and updates methods to use this new function. Additionally, it optimizes the application of operators by precomputing sign masks.

Removal of SparseHamiltonian:

• Removed sparse_hamiltonian_api.cc file and its references from forte/CMakeLists.txt [1] [2] [3].
• Removed the export_SparseHamiltonian function from forte_python_module.cc and forte_python_module.h [1] [2].

Introduction of sparse_operator_hamiltonian:

• Replaced SparseHamiltonian with sparse_operator_hamiltonian in general_cc.py [1] [2] [3].
• Updated tests to use sparse_operator_hamiltonian [1] [2].

Operator Application Optimization:

• Modified apply_operator_impl_naive and apply_operator_impl_grouped to use precomputed sign masks from SQOperatorString [1] [2] [3] [4] [5] [6] [7] [8].
• Updated SQOperatorString to compute and store sign masks during initialization [1] [2] [3] [4].

Enhancements to Sparse Operators:

• Added apply_to_state method to SparseOperator and SparseOperatorList [1] [2].## Description
  A brief description of the goals accomplished by this PR

User Notes

• Features added
• Changes to compilation (if any)

Checklist

• Added/updated tests of new features and included a reference output.ref file
• Removed comments in code and input files
• Documented source code
• Checked for redundant headers
• Checked for consistency in the formatting of the output file
• Documented new features in the manual
• Ready to go!