Build on mac catalina failing

[JWambaugh]

Describe the bug
The latest code from master branch is not compiling on mac for unreal 4.26.1.

This is because of an error in the Test module.

Removing the Test module from the plugin's .uproject file allows the plugin to compile successfully.

To Reproduce

1. Download latest code and put in a project's plugins directory
2. regenerate xcode project
3. Build product

Expected: build projectand plugin c++
Actual result: comilation fails with error

Logs
The error message is:

2/4] Compile Module.SaveExtensionTest.gen.cpp
[1/4] Compile Module.SaveExtensionTest.cpp
In file included from /Users/jordan/source/pillager/Plugins/SaveExtension/Intermediate/Build/Mac/x86_64/UE4Editor/Development/SaveExtensionTest/Module.SaveExtensionTest.cpp:2:
In file included from /Users/jordan/source/pillager/Plugins/SaveExtension/Source/Test/Private/Files.spec.cpp:3:
/Users/jordan/source/pillager/Plugins/SaveExtension/Source/Test/Private/Automatron.h:1223:26: error: variable 'PIEStartedHandle' is uninitialized when used within its own initialization [-Werror,-Wuninitialized]
                                [this, OnWorldReady, PIEStartedHandle](const bool bIsSimulating) {
                                                     ^~~~~~~~~~~~~~~~
1 error generated.

Environment (please complete the following information):

• Engine Version: [e.g. 4.26.1]
• Plugin Version: [master@Head]
• OS: [mac catalina]

[xiejiangzhi]

I made a simple fix for this: maybe you can try it.

main...xiejiangzhi:osx_fix

[xiejiangzhi]

But I stiil got a codesign error in xcode.

I don’t know why, but after the compilation is passed(without codesign), the UE4 editor can run the plugin normally.