Adds podspec for RxLibrary and sample app

...iles/Pods-Sample-RxLibrary/Pods-Sample-RxLibrary.xcconfig

...t Files/Pods-Sample/Pods-Sample-acknowledgements.markdown

...port Files/Pods-Sample/Pods-Sample-acknowledgements.plist

...Pods/Target Support Files/Pods-Sample/Pods-Sample-dummy.m

...arget Support Files/Pods-Sample/Pods-Sample-environment.h

...Target Support Files/Pods-Sample/Pods-Sample-resources.sh

...rget Support Files/Pods-Sample/Pods-Sample.debug.xcconfig

...et Support Files/Pods-Sample/Pods-Sample.release.xcconfig

...sts-RxLibrary/Pods-SampleTests-RxLibrary-Private.xcconfig

...-SampleTests-RxLibrary/Pods-SampleTests-RxLibrary-dummy.m

...mpleTests-RxLibrary/Pods-SampleTests-RxLibrary-prefix.pch

...SampleTests-RxLibrary/Pods-SampleTests-RxLibrary.xcconfig

...ds-SampleTests/Pods-SampleTests-acknowledgements.markdown

.../Pods-SampleTests/Pods-SampleTests-acknowledgements.plist

...t Support Files/Pods-SampleTests/Pods-SampleTests-dummy.m

...ort Files/Pods-SampleTests/Pods-SampleTests-environment.h

...port Files/Pods-SampleTests/Pods-SampleTests-resources.sh

...rt Files/Pods-SampleTests/Pods-SampleTests.debug.xcconfig

... Files/Pods-SampleTests/Pods-SampleTests.release.xcconfig

.../Target Support Files/Pods/Pods-acknowledgements.markdown