• [FEATURE, API Change] 0-RTT support. Add function to export 0-RTT information; it can be supplied to a subsequent connect() call.
• [FEATURE] Add -0 flag to http_client to exercise 0-RTT support.
• [BUGFIX] Resuscitate the Windows build.
• [BUGFIX] Send HTTP settings (max header list size) if necessary.
• [BUGFIX] Buffered packets can contain ACK frames.
• [BUGFIX] Make packet writeable once all STREAM frames are elided.
• [BUGFIX] Fix potential null dereference when realloc fails.
• cmake: simplify build configuration.