Snort v3.1.71.0

Changes in this release since 3.1.70.0:

• appid, http_inspect, http2_inspect: create appid session if not present in decrypt event handler, add message section as part of StreamFlowIntf for httpx
• codecs: Add IPv6 Reserved Address to GID:116 Rules
• detection: avoid multiple fixups of duplicated trees
• detection: fix of default ips policy switching
• flow: allow reinspection for blocked icmp flows after reload
• flow: generate flow setup and established events for ha flows
• host_cache: cppcheck fix
• http2_inspect: fix http2 frame length for logging
• main: fix signals handling after failed started instances
• main: reset_stats argument type improvement
• parser: add file_id rule syntax evaluation
• smtp: add alert for mixed LF and CRLF
• smtp: process DATA\n (no \r)
• stream: extend list of arguments for extra data logging
• stream_tcp: ensure all data segments after a zero window are blocked when NAP is inline
• stream_tcp: examine whether a segment plugs a hole before blocking due to exceeding queue_limit