Fix osx build -- disable code signing

Author: medengineer

CMakeLists.txt

@@ -173,6 +173,8 @@ elseif(APPLE)
 	set(DLLDIR ${RESOURCES_DIRECTORY}/DLLs/Mac)
 
 	set_target_properties(open-ephys PROPERTIES
+		XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+		XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED NO
 		XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT dwarf
 		XCODE_ATTRIBUTE_GCC_INLINES_ARE_PRIVATE_EXTERN YES
 		XCODE_ATTRIBUTE_CLANG_LINK_OBJC_RUNTIME NO

Plugins/PluginRules.cmake

@@ -34,6 +34,8 @@ elseif(APPLE)
 	target_link_libraries(${PLUGIN_NAME} dl)
 
 	set_target_properties(${PLUGIN_NAME} PROPERTIES
+		XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+		XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED NO
 		XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT dwarf
 		XCODE_ATTRIBUTE_GCC_INLINES_ARE_PRIVATE_EXTERN YES
 		XCODE_ATTRIBUTE_CLANG_LINK_OBJC_RUNTIME NO