Add blade embedder

[sgrava]

Add the blade embedding algorithm from qubo-solver library.

Description

To reuse the same embedding algorithm in other libraries (qubo, mis, qek) it is convenient to refactor such code into a QoolQit embedder.

Actions

• organize qoolqit/embedding/ and tests/test_embedding to prepare for blade embedding porting
  - issue: reorganize embedding module to facilitate porting new embeddings #155
  - PR: Reorganize embedding module to facilitate porting new embeddings #156
• port the algorithm in qoolqit/embedding/algorithm: done in Add blade embedder from qubo-solver #154
  • investigate if scikit-learn and seaborn are necessary as dependencies: optional
  • test
  • add a BladeEmbedder and a BladeEmbedderConfig with optional device dependency.
  • integration test
  • PR: Add blade embedder from qubo-solver #154
• expand documentation to add BladeEmbedder
  • issue: [Docs] document BladeEmbedder #161
  • PR:
• Refactor blade_embedding/_qubo_mapper.py
  • issue: refactor _qubo_mapper.py in blade embedding #162
• add blade integration test blade embedding integration test with device #165
• blade for device: how to see the final pulser register blade for device #168
• port adapt dimensions PR from qubo-solver Adapt dimensions for starting positions in BLaDE + rename 'qubo' into 'interactions' #176
• Investigate random blade position scaling Investigate random blade position scaling #177