Added getIndexOf in String Extensions
Added getIndexOf in String Extensions
Daniel-Lopez/EZSwiftExtensions,Daniel-Lopez/EZSwiftExtensions,goktugyil/EZSwiftExtensions,piv199/EZSwiftExtensions,kirakik/EZSwiftExtensions,astrokin/EZSwiftExtensions,goktugyil/EZSwiftExtensions,astrokin/EZSwiftExtensions,kirakik/EZSwiftExtensions,piv199/EZSwiftExtensions