Update module config file

[Lax]

Nginx dynamic module build system can compile multiple modules in a single .so

• ngx_module_name

Users can enable/disable HTTP or STREAM or both module[s] by --without-http or --with-stream

./configure options

• HTTP(default) ./configure --add-dynamic-module=traffic-accounting-nginx-module module file ngx_http_accounting_module.so
• HTTP+STREAM ./configure --add-dynamic-module=traffic-accounting-nginx-module --with-stream module file ngx_http_accounting_module.so
• STREAM-only ./configure --add-dynamic-module=traffic-accounting-nginx-module --without-http --with-stream module file ngx_stream_accounting_module.so

fix #31 #32 #34 #35