accept larger disk size (#122)

Sources/tart/Commands/Create.swift

@@ -13,7 +13,7 @@ struct Create: AsyncParsableCommand {
   var fromIPSW: String?
 
   @Option(help: ArgumentHelp("Disk size in Gb")) 
-  var diskSize: UInt8 = 50
+  var diskSize: UInt16 = 50
 
   func validate() throws {
     if fromIPSW == nil {

Sources/tart/Commands/Set.swift

@@ -17,7 +17,7 @@ struct Set: AsyncParsableCommand {
   var display: VMDisplayConfig?
 
   @Option(help: .hidden)
-  var diskSize: UInt8?
+  var diskSize: UInt16?
 
   func run() async throws {
     do {

Sources/tart/VM.swift

@@ -78,7 +78,7 @@ class VM: NSObject, VZVirtualMachineDelegate, ObservableObject {
     return expectedIPSWLocation
   }
 
-  init(vmDir: VMDirectory, ipswURL: URL?, diskSizeGB: UInt8) async throws {
+  init(vmDir: VMDirectory, ipswURL: URL?, diskSizeGB: UInt16) async throws {
     let ipswURL = ipswURL != nil ? ipswURL! : try await VM.retrieveLatestIPSW();
 
     // Load the restore image and try to get the requirements

Sources/tart/VMDirectory.swift

@@ -68,7 +68,7 @@ struct VMDirectory {
     try newVMConfig.save(toURL: to.configURL)
   }
 
-  func resizeDisk(_ sizeGB: UInt8) throws {
+  func resizeDisk(_ sizeGB: UInt16) throws {
     if !FileManager.default.fileExists(atPath: diskURL.path) {
       FileManager.default.createFile(atPath: diskURL.path, contents: nil, attributes: nil)
     }