Reverted unintentional breaking change

Author: SomeRandomiOSDev

Half.podspec

@@ -17,7 +17,7 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target    = '9.0'
   s.watchos.deployment_target = '2.0'
 
-  s.source_files      = 'Sources/Half/*.swift'
+  s.source_files      = 'Sources/**/*.{swift,h,c}'
   s.swift_versions    = ['4.0', '4.2', '5.0']
   s.cocoapods_version = '>= 1.7.3'