Adopted the standard withCString for C strings throughout the library.

Sources/PlaydateKit/Sound/Source/Classes/AudioSample.swift

@@ -21,7 +21,7 @@ extension Sound {
 
         /// Loads the wav or aiff file at `path`.
         public convenience init(path: String) throws(PlaydateError) {
-            let pointer = path.withPlaydateCString { AudioSample.api.pointee.load.unsafelyUnwrapped($0) }
+            let pointer = path.withCString { AudioSample.api.pointee.load.unsafelyUnwrapped($0) }
             guard let pointer else {
                 throw PlaydateError(message: "unable to load sample: \(path)")
             }
@@ -49,7 +49,7 @@ extension Sound {
 
         /// Loads the file at `path` into this sample's buffer.
         public func load(path: String) throws(PlaydateError) {
-            let loaded = path.withPlaydateCString {
+            let loaded = path.withCString {
                 AudioSample.api.pointee.loadIntoSample.unsafelyUnwrapped(pointer, $0) != 0
             }
             if !loaded {