[fix](orc) handle legacy calendar rebasing

[xylaaaaa]

Summary

• Add hybrid/proleptic Gregorian calendar conversion for ORC DATE and TIMESTAMP reads.
• Detect writer calendar metadata and expose reader target calendar options.
• Rebase DATE/TIMESTAMP predicate min/max safely and skip bloom filters when legacy/proleptic calendars differ.
• Mark C++ ORC writer output as PROLEPTIC_GREGORIAN.

Test Plan

• g++ -std=c++17 -Icontrib/apache-orc/c++/src -fsyntax-only contrib/apache-orc/c++/src/DateUtils.cc
• cmake --build contrib/apache-orc/build_codex_orc_calendar_tp2 --target orc -j4
• contrib/apache-orc/build_codex_orc_calendar_tp2/verify_orc_calendar
• contrib/apache-orc/build_codex_orc_calendar_tp2/verify_orc_predicate_calendar
• contrib/apache-orc/build_codex_orc_calendar_tp2/verify_orc_writer_calendar

Notes

• Full orc-test is currently blocked by an existing unrelated TestBloomFilter private-member compile issue in this branch.