Fixed `idb_build.sh framework build` failing (#622)
Fixed `idb_build.sh framework build` failing (#622)

Summary:
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## Motivation
Fixed the following error when running `./idb_build.sh framework build`.

```
% ./idb_build.sh framework build
using target framework

...

/Users/hnisiji/Documents/dev/idb/FBControlCore/FBControlCore.h:80:9: fatal error: 'FBControlCore/FBPowerCommands.h' file not found
#import <FBControlCore/FBPowerCommands.h>
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/hnisiji/Documents/dev/idb/FBControlCore/FBControlCore.h:80:9: note: did not find header 'FBPowerCommands.h' in framework 'FBControlCore' (loaded from
      '/Users/hnisiji/Documents/dev/idb/build/Build/Products/Debug')
1 error generated.

** BUILD FAILED **

The following build commands failed:
	CompileC /Users/hnisiji/Documents/dev/idb/build/Build/Intermediates.noindex/FBSimulatorControl.build/Debug/FBControlCore.build/Objects-normal/x86_64/FBiOSTargetCommandForwarder.o /Users/hnisiji/Documents/dev/idb/FBControlCore/Commands/FBiOSTargetCommandForwarder.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
(1 failure)

```

Pull Request resolved: https://github.com/facebook/idb/pull/622

Reviewed By: zeyadsalloum

Differential Revision: D23746937

Pulled By: c-ryan747

fbshipit-source-id: 9a247636e56f26056275b86242262fd3c6b2474b

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl