Add CPPHTTPLIB_NO_DEFAULT_USER_AGENT

CPPHTTPLIB_NO_DEFAULT_USER_AGENT skips default user agent (#1201)

Fix various problems

Fix is_file problem on Windows (#1153)
fix socket option setting for windows (#1154)
Fix #1166
Report connection timeout as separate event (#1171)

Fix "Issue 42689 in oss-fuzz: cpp-httplib:server_fuzzer: Timeout in server_fuzzer"

v0.10.1

Release v0.10.1

Add SSLServer::ssl_context()

• Add SSLServer::ssl_context()
• Performance improvement for multipart form data file upload
• Fix keep-alive problem
• Add CPPHTTPLIB_LISTEN_BACKLOG

Fix problem when stopping a server

Can't properly stop server when using huge max keep alives (#1121)

Added patch version in user agent string

v0.9.9

Release v0.9.9

Fixed several issues

Allow to specify server IP address (#1067)
Accept protobuf encoding for compression (#1096)
Disable C++ exception with CPPHTTPLIB_NO_EXCEPTIONS (#1100)

Support custom SSL ctx configuration for SSLServer

#1073

Add retry logic for SSL_write

#1070

Fix bugs and performance improvement

#1023
#1037
#1054