Feat/balancer swap

[gztensor]

Description

Implement PalSwap (similar to balancer swap) to replace Uniswap V3.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Other (please describe):

Breaking Change

This PR changes the following externally accessible entities:

• add_liqudiity extrinsic: Remove tick_low and tick_high parameters.
• Positions map is replaced with PositionsV2 map
• Following state maps removed:
  • AlphaSqrtPrice
  • CurrentLiquidity
  • CurrentTick
  • FeeGlobalTao
  • FeeGlobalAlpha
  • ScrapReservoirTao (applied before removing)
  • ScrapReservoirAlpha (applied before removing)
  • Ticks
  • SwapV3Initialized
  • TickIndexBitmapWords

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have run ./scripts/fix_rust.sh to ensure my code is formatted and linted correctly
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules