Add open-source HydroL hydrodynamics module (Morison equation + wave kinematics)

[Copilot]

Implements the open-source HydroL水动力计算 module for Spar-type floating offshore wind turbines. Covers wave generation (JONSWAP/PM spectra, regular waves) and Morison-equation-based load integration, following the same structural patterns as existing modules (MSAL, AeroL).

New files

• HydroL_Types.cs — All enums (WaveMod_Type, HydroMod_Type, MoorLine_Type, PotMod_Type, HydroL_Loadchannels) and data structs (HydroL1, SparMemberNode, WaveKinematics, HydroL_AllOuts, HydroL_ParameterType, HydroL_RtHndSideType)

• WaveL/WaveL_Subs.cs — Linear wave theory engine:

  • JONSWAP spectrum with σ_a=0.07/σ_b=0.09 (DNV-RP-C205) and automatic γ selection
  • PM spectrum (γ=1 degenerate case)
  • Regular wave generation
  • Newton-Raphson dispersion relation solver: ω² = gk·tanh(kd)
  • Water particle kinematics (velocity, acceleration, dynamic pressure) at arbitrary depth

• Morison/Morison_Subs.cs — Morison equation per unit length:

  F = ρ·Cm·A·ü_w − ρ·(Cm−1)·A·ü_b + 0.5·ρ·Cd·D·|u_rel|·u_rel
  

  Trapezoidal integration along Spar axis → 6-DOF load vector at reference point; added mass matrix computation.

• HydroL_INI.cs — Initialization: dispatches wave generation by WaveMod, builds SparMemberNode[] from input joints/properties, constructs piecewise-linear current velocity interpolant.

• HydroL_IO_Subs.cs — .dat input file parser (ReadHydroL_MainFile) and output writer (HydroL_IO_Outs), consistent with MSA_IO_Subs/MSA_IO_Outs conventions including IO_ChannelType, per-channel file output, and dimension-aware variable expansion for Spar node outputs.

• HydroL_OutputParam.cs — 38 output variables across 5 channels (total hydro loads, PRP motions, Spar node loads, mooring loads, wave elevation) with units and dimension flags.

Matches demo input

Compatible with demo/5MW_Spar/Hydro/HawtC2_HydroL_Main_5MW.dat (OC3 Hywind 5 MW Spar), including all listed OutList variables.

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