Introduce data-driven opcode registry with canonical and alias sources:
- Added Data/opcodes/canonical.json as the single canonical LogicalOpcode set.
- Added Data/opcodes/aliases.json for cross-core naming aliases (CMaNGOS/AzerothCore/local legacy).
Added generator and generated include fragments:
- tools/gen_opcode_registry.py emits include/game/opcode_enum_generated.inc, include/game/opcode_names_generated.inc, and include/game/opcode_aliases_generated.inc.
- include/game/opcode_table.hpp now consumes generated enum entries.
- src/game/opcode_table.cpp now consumes generated name and alias tables.
Loader canonicalization behavior:
- OpcodeTable::nameToLogical canonicalizes incoming JSON opcode names via alias table before enum lookup, so implementation code stays stable while expansion maps can use different core spellings.
Validation and build integration:
- Added tools/validate_opcode_maps.py to validate canonical contract across expansions.
- Added CMake targets opcodes-generate and opcodes-validate.
- wowee target now depends on opcodes-generate so generated headers stay current.
Validation/build run:
- cmake -S . -B build
- cmake --build build --target opcodes-generate opcodes-validate
- cmake --build build -j32
