whitespace trailing mass cleanout

lib/client-handshake.c

lib/client-parser.c

lib/client.c

lib/context.c

lib/extension-deflate-frame.h

lib/extension-deflate-stream.c

lib/extension-deflate-stream.h

lib/extension.c

lib/getifaddrs.c

lib/hpack.c

lib/http2.c

lib/lextable-strings.h

lib/libev.c

lib/libwebsockets.c

lib/libwebsockets.h

lib/lws-plat-mbed3.c

lib/lws-plat-mbed3.cpp

lib/lws-plat-win.c

lib/minihuf.c

lib/minilex.c