added objc_property.m
added objc_property.m

mpw/marcelweiher-libobjc2,uptime-services/development-arts,berkus/cocotron,mpw/marcelweiher-libobjc2,uptime-services/development-arts,berkus/cocotron,liruqi/cocotron,mpw/marcelweiher-libobjc2,liruqi/cocotron,mpw/marcelweiher-libobjc2,liruqi/cocotron,berkus/cocotron,uptime-services/development-arts,berkus/cocotron,liruqi/cocotron,uptime-services/development-arts