Phase 1 of package refactor. Moves all source modules into pm3py/core/
with file renames (hf_14a→hf_iso14a, hf_15→hf_iso15, hf_mf→hf_mfc)
and client attribute normalization (hf.a14→hf.iso14a, hf.mf→hf.mfc).
pm3py/__init__.py re-exports from core for backward compat.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
4 tasks: update TableEntry to 120-byte format, compile_nxp_icode,
compile_slix2, wire auto-compile into SimSession.start_15693.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Covers: sim_table entry structure with EML actions and group-based
state machine, AES-CMAC for TAM/MAM, native handler access control,
14443-A integration, timing budget analysis.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>