Add tapered piece development evaluation

[KnightStackSys]

Adds a lightweight handcrafted Piece Development term for 4PC Teams.

Evaluation

• Rewards knights, bishops, rooks, and queens for leaving their player's home back line.
• Uses each color's actual board orientation: Red/Yellow use ranks, Blue/Green use files.
• Does not depend on move history, so a captured piece cannot keep contributing development value.
• Uses a global non-pawn-material taper so the term is strongest in the opening and fades naturally as pieces come off the board.
• Promotions cannot increase the phase above the starting value.
• The term is HCE-only; PhoenixNet behavior is unchanged.

Tunable parameters

• EvalDevelopmentKnight = 8
• EvalDevelopmentBishop = 8
• EvalDevelopmentRook = 2
• EvalDevelopmentQueen = 0

All parameters are exposed through the existing UCI tuning system, appear in tuneparams, and can be tuned with Tunex.

The conservative defaults focus the term on minor-piece development while keeping rook development small and queen development neutral by default.

This branch is intentionally isolated for SPRT testing against main.